90360690 has 32 divisors (see below), whose sum is σ = 247847040. Its totient is φ = 20653824.

The previous prime is 90360671. The next prime is 90360719. The reversal of 90360690 is 9606309.

It is a super-2 number, since 2×90360690² = 16330108594552200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214935 + ... + 215354.

It is an arithmetic number, because the mean of its divisors is an integer number (7745220).

Almost surely, 2^90360690 is an apocalyptic number.

90360690 is an abundant number, since it is smaller than the sum of its proper divisors (157486350).

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

90360690 is a wasteful number, since it uses less digits than its factorization.

90360690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430306.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 90360690 is about 9505.8240042618. The cubic root of 90360690 is about 448.7383425613.

Adding to 90360690 its reverse (9606309), we get a palindrome (99966999).

The spelling of 90360690 in words is "ninety million, three hundred sixty thousand, six hundred ninety".