42770957 has 4 divisors (see below), whose sum is σ = 45022080. Its totient is φ = 40519836.

The previous prime is 42770953. The next prime is 42770983. The reversal of 42770957 is 75907724.

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 a cyclic number.

It is not a de Polignac number, because 42770957 - 2² = 42770953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42770953) 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, 1125533 + ... + 1125570.

It is an arithmetic number, because the mean of its divisors is an integer number (11255520).

Almost surely, 2^42770957 is an apocalyptic number.

It is an amenable number.

42770957 is a deficient number, since it is larger than the sum of its proper divisors (2251123).

42770957 is a wasteful number, since it uses less digits than its factorization.

42770957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251122.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 42770957 is about 6539.9508407938. The cubic root of 42770957 is about 349.7166604827.

The spelling of 42770957 in words is "forty-two million, seven hundred seventy thousand, nine hundred fifty-seven".