3957240037 has 4 divisors (see below), whose sum is σ = 4093696620. Its totient is φ = 3820783456.

The previous prime is 3957240031. The next prime is 3957240041. The reversal of 3957240037 is 7300427593.

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 722588161 + 3234651876 = 26881^2 + 56874^2 .

It is a cyclic number.

It is not a de Polignac number, because 3957240037 - 2¹⁵ = 3957207269 is a prime.

It is a super-2 number, since 2×3957240037² = 31319497420871522738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957240031) 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, 68228248 + ... + 68228305.

It is an arithmetic number, because the mean of its divisors is an integer number (1023424155).

Almost surely, 2^3957240037 is an apocalyptic number.

It is an amenable number.

3957240037 is a deficient number, since it is larger than the sum of its proper divisors (136456583).

3957240037 is a wasteful number, since it uses less digits than its factorization.

3957240037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136456582.

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 3957240037 is about 62906.5977223375. The cubic root of 3957240037 is about 1581.7243414754.

The spelling of 3957240037 in words is "three billion, nine hundred fifty-seven million, two hundred forty thousand, thirty-seven".