90735278 has 8 divisors (see below), whose sum is σ = 136271160. Its totient is φ = 45311560.

The previous prime is 90735247. The next prime is 90735301. The reversal of 90735278 is 87253709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25988 + ... + 29271.

It is an arithmetic number, because the mean of its divisors is an integer number (17033895).

Almost surely, 2^90735278 is an apocalyptic number.

90735278 is a deficient number, since it is larger than the sum of its proper divisors (45535882).

90735278 is a wasteful number, since it uses less digits than its factorization.

90735278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56082.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 90735278 is about 9525.5067056824. The cubic root of 90735278 is about 449.3575655810.

The spelling of 90735278 in words is "ninety million, seven hundred thirty-five thousand, two hundred seventy-eight".