42753691 has 16 divisors (see below), whose sum is σ = 46929024. Its totient is φ = 38790144.

The previous prime is 42753677. The next prime is 42753703. The reversal of 42753691 is 19635724.

It is a cyclic number.

It is not a de Polignac number, because 42753691 - 2²⁵ = 9199259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42753691.

It is not an unprimeable number, because it can be changed into a prime (42753091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57961 + ... + 58693.

It is an arithmetic number, because the mean of its divisors is an integer number (2933064).

Almost surely, 2^42753691 is an apocalyptic number.

42753691 is a deficient number, since it is larger than the sum of its proper divisors (4175333).

42753691 is a wasteful number, since it uses less digits than its factorization.

42753691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870.

The product of its digits is 45360, while the sum is 37.

The square root of 42753691 is about 6538.6306670434. The cubic root of 42753691 is about 349.6695956754.

The spelling of 42753691 in words is "forty-two million, seven hundred fifty-three thousand, six hundred ninety-one".