90990735 has 32 divisors (see below), whose sum is σ = 163952640. Its totient is φ = 42691200.

The previous prime is 90990727. The next prime is 90990743. The reversal of 90990735 is 53709909.

90990735 = T₁₃₀₆ + T₁₃₀₇ + ... + T₁₄₀₄.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90990727) and next prime (90990743).

It is not a de Polignac number, because 90990735 - 2³ = 90990727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3780 + ... + 14009.

It is an arithmetic number, because the mean of its divisors is an integer number (5123520).

Almost surely, 2^90990735 is an apocalyptic number.

90990735 is a deficient number, since it is larger than the sum of its proper divisors (72961905).

90990735 is a wasteful number, since it uses less digits than its factorization.

90990735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17839.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 90990735 is about 9538.9063838576. The cubic root of 90990735 is about 449.7788790177.

The spelling of 90990735 in words is "ninety million, nine hundred ninety thousand, seven hundred thirty-five".