90742929 has 16 divisors (see below), whose sum is σ = 123414720. Its totient is φ = 59290560.

The previous prime is 90742877. The next prime is 90742933. The reversal of 90742929 is 92924709.

It is not a de Polignac number, because 90742929 - 2⁷ = 90742801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90742229) 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, 62787 + ... + 64215.

It is an arithmetic number, because the mean of its divisors is an integer number (7713420).

Almost surely, 2^90742929 is an apocalyptic number.

It is an amenable number.

90742929 is a deficient number, since it is larger than the sum of its proper divisors (32671791).

90742929 is a wasteful number, since it uses less digits than its factorization.

90742929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 90742929 is about 9525.9083031488. The cubic root of 90742929 is about 449.3701955017.

The spelling of 90742929 in words is "ninety million, seven hundred forty-two thousand, nine hundred twenty-nine".