7963157 has 4 divisors (see below), whose sum is σ = 8431596. Its totient is φ = 7494720.

The previous prime is 7963141. The next prime is 7963159. The reversal of 7963157 is 7513697.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3118756 + 4844401 = 1766^2 + 2201^2 .

It is a cyclic number.

It is not a de Polignac number, because 7963157 - 2⁴ = 7963141 is a prime.

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 7963157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7963159) 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, 234194 + ... + 234227.

It is an arithmetic number, because the mean of its divisors is an integer number (2107899).

Almost surely, 2^7963157 is an apocalyptic number.

It is an amenable number.

7963157 is a deficient number, since it is larger than the sum of its proper divisors (468439).

7963157 is a wasteful number, since it uses less digits than its factorization.

7963157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468438.

The product of its digits is 39690, while the sum is 38.

The square root of 7963157 is about 2821.9066249612. The cubic root of 7963157 is about 199.6925024686.

It can be divided in two parts, 79 and 63157, that added together give a palindrome (63236).

The spelling of 7963157 in words is "seven million, nine hundred sixty-three thousand, one hundred fifty-seven".