1381707 has 6 divisors (see below), whose sum is σ = 1995812. Its totient is φ = 921132.

The previous prime is 1381697. The next prime is 1381727. The reversal of 1381707 is 7071831.

It is not a de Polignac number, because 1381707 - 2⁶ = 1381643 is a prime.

It is a super-2 number, since 2×1381707² = 3818228467698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76753 + ... + 76770.

2^1381707 is an apocalyptic number.

1381707 is a deficient number, since it is larger than the sum of its proper divisors (614105).

1381707 is a wasteful number, since it uses less digits than its factorization.

1381707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153529 (or 153526 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 1381707 is about 1175.4603353580. The cubic root of 1381707 is about 111.3795141901.

The spelling of 1381707 in words is "one million, three hundred eighty-one thousand, seven hundred seven".