45879431 has 4 divisors (see below), whose sum is σ = 49408632. Its totient is φ = 42350232.

The previous prime is 45879391. The next prime is 45879439. The reversal of 45879431 is 13497854.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13497854 = 2 ⋅6748927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45879431 is a prime.

It is a super-2 number, since 2×45879431² = 4209844377767522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45879439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1764581 + ... + 1764606.

It is an arithmetic number, because the mean of its divisors is an integer number (12352158).

Almost surely, 2^45879431 is an apocalyptic number.

45879431 is a deficient number, since it is larger than the sum of its proper divisors (3529201).

45879431 is a wasteful number, since it uses less digits than its factorization.

45879431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529200.

The product of its digits is 120960, while the sum is 41.

The square root of 45879431 is about 6773.4356865626. The cubic root of 45879431 is about 357.9914664591.

The spelling of 45879431 in words is "forty-five million, eight hundred seventy-nine thousand, four hundred thirty-one".