3720957 has 4 divisors (see below), whose sum is σ = 4961280. Its totient is φ = 2480636.

The previous prime is 3720947. The next prime is 3720989. The reversal of 3720957 is 7590273.

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: 7590273 = 3 ⋅2530091.

It is a cyclic number.

It is not a de Polignac number, because 3720957 - 2⁸ = 3720701 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720907) 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, 620157 + ... + 620162.

It is an arithmetic number, because the mean of its divisors is an integer number (1240320).

Almost surely, 2^3720957 is an apocalyptic number.

It is an amenable number.

3720957 is a deficient number, since it is larger than the sum of its proper divisors (1240323).

3720957 is a wasteful number, since it uses less digits than its factorization.

3720957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240322.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 3720957 is about 1928.9782269378. The cubic root of 3720957 is about 154.9595038154.

The spelling of 3720957 in words is "three million, seven hundred twenty thousand, nine hundred fifty-seven".