90167652 has 18 divisors (see below), whose sum is σ = 227923878. Its totient is φ = 30055872.

The previous prime is 90167621. The next prime is 90167663. The reversal of 90167652 is 25676109.

It can be written as a sum of positive squares in only one way, i.e., 87160896 + 3006756 = 9336^2 + 1734^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2504657 = 90167652 / (9 + 0 + 1 + 6 + 7 + 6 + 5 + 2).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1252293 + ... + 1252364.

Almost surely, 2^90167652 is an apocalyptic number.

It is an amenable number.

90167652 is an abundant number, since it is smaller than the sum of its proper divisors (137756226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90167652 is a wasteful number, since it uses less digits than its factorization.

90167652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504667 (or 2504662 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 90167652 is about 9495.6649056293. The cubic root of 90167652 is about 448.4185674088.

The spelling of 90167652 in words is "ninety million, one hundred sixty-seven thousand, six hundred fifty-two".