90745629 has 16 divisors (see below), whose sum is σ = 131091072. Its totient is φ = 55505088.

The previous prime is 90745607. The next prime is 90745631. The reversal of 90745629 is 92654709.

It is not a de Polignac number, because 90745629 - 2⁹ = 90745117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90745679) 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, 454 + ... + 13479.

It is an arithmetic number, because the mean of its divisors is an integer number (8193192).

Almost surely, 2^90745629 is an apocalyptic number.

It is an amenable number.

90745629 is a deficient number, since it is larger than the sum of its proper divisors (40345443).

90745629 is a wasteful number, since it uses less digits than its factorization.

90745629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14116.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 90745629 is about 9526.0500208638. The cubic root of 90745629 is about 449.3746523687.

The spelling of 90745629 in words is "ninety million, seven hundred forty-five thousand, six hundred twenty-nine".