40711657 has 4 divisors (see below), whose sum is σ = 46527616. Its totient is φ = 34895700.

The previous prime is 40711639. The next prime is 40711663. The reversal of 40711657 is 75611704.

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.

It is not a de Polignac number, because 40711657 - 2⁷ = 40711529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40711637) 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, 2907969 + ... + 2907982.

It is an arithmetic number, because the mean of its divisors is an integer number (11631904).

Almost surely, 2^40711657 is an apocalyptic number.

It is an amenable number.

40711657 is a deficient number, since it is larger than the sum of its proper divisors (5815959).

40711657 is an equidigital number, since it uses as much as digits as its factorization.

40711657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815958.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 40711657 is about 6380.5687050607. The cubic root of 40711657 is about 344.0114725983.

The spelling of 40711657 in words is "forty million, seven hundred eleven thousand, six hundred fifty-seven".