1075372987 has 4 divisors (see below), whose sum is σ = 1158094000. Its totient is φ = 992651976.

The previous prime is 1075372973. The next prime is 1075372993. The reversal of 1075372987 is 7892735701.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7892735701 = 389 ⋅20289809.

It is a cyclic number.

It is not a de Polignac number, because 1075372987 - 2¹¹ = 1075370939 is a prime.

It is a super-2 number, since 2×1075372987² = 2312854122338604338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1075372987.

It is not an unprimeable number, because it can be changed into a prime (1075372937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41360487 + ... + 41360512.

It is an arithmetic number, because the mean of its divisors is an integer number (289523500).

Almost surely, 2^1075372987 is an apocalyptic number.

1075372987 is a deficient number, since it is larger than the sum of its proper divisors (82721013).

1075372987 is an equidigital number, since it uses as much as digits as its factorization.

1075372987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82721012.

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 1075372987 is about 32792.8801266372. The cubic root of 1075372987 is about 1024.5182703999.

The spelling of 1075372987 in words is "one billion, seventy-five million, three hundred seventy-two thousand, nine hundred eighty-seven".