90274970 has 16 divisors (see below), whose sum is σ = 168098760. Its totient is φ = 34864704.

The previous prime is 90274969. The next prime is 90274979. The reversal of 90274970 is 7947209.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75290329 + 14984641 = 8677^2 + 3871^2 .

It is not an unprimeable number, because it can be changed into a prime (90274979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155357 + ... + 155936.

Almost surely, 2^90274970 is an apocalyptic number.

90274970 is a deficient number, since it is larger than the sum of its proper divisors (77823790).

90274970 is a wasteful number, since it uses less digits than its factorization.

90274970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311329.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 90274970 is about 9501.3141196363. The cubic root of 90274970 is about 448.5964002314.

The spelling of 90274970 in words is "ninety million, two hundred seventy-four thousand, nine hundred seventy".