3960157 has 4 divisors (see below), whose sum is σ = 4087936. Its totient is φ = 3832380.

The previous prime is 3960137. The next prime is 3960161. The reversal of 3960157 is 7510693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7510693 = 191 ⋅39323.

It is a cyclic number.

It is not a de Polignac number, because 3960157 - 2⁷ = 3960029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 127747 = 3960157 / (3 + 9 + 6 + 0 + 1 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3960137) 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, 63843 + ... + 63904.

It is an arithmetic number, because the mean of its divisors is an integer number (1021984).

Almost surely, 2^3960157 is an apocalyptic number.

It is an amenable number.

3960157 is a deficient number, since it is larger than the sum of its proper divisors (127779).

3960157 is a wasteful number, since it uses less digits than its factorization.

3960157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127778.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 3960157 is about 1990.0143215565. The cubic root of 3960157 is about 158.2112886535.

The spelling of 3960157 in words is "three million, nine hundred sixty thousand, one hundred fifty-seven".