90662690 has 8 divisors (see below), whose sum is σ = 163192860. Its totient is φ = 36265072.

The previous prime is 90662681. The next prime is 90662707. The reversal of 90662690 is 9626609.

It can be written as a sum of positive squares in 2 ways, for example, as 90573289 + 89401 = 9517^2 + 299^2 .

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

It is a super-2 number, since 2×90662690² = 16439446716072200, which contains 22 as substring.

It is a Curzon 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, 4533125 + ... + 4533144.

Almost surely, 2^90662690 is an apocalyptic number.

90662690 is a deficient number, since it is larger than the sum of its proper divisors (72530170).

90662690 is a wasteful number, since it uses less digits than its factorization.

90662690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9066276.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 90662690 is about 9521.6957523332. The cubic root of 90662690 is about 449.2377052957.

The spelling of 90662690 in words is "ninety million, six hundred sixty-two thousand, six hundred ninety".