90369951 has 16 divisors (see below), whose sum is σ = 138133248. Its totient is φ = 51480000.

The previous prime is 90369949. The next prime is 90369959. The reversal of 90369951 is 15996309.

It is not a de Polignac number, because 90369951 - 2¹ = 90369949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90369959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451 + ... + 13451.

It is an arithmetic number, because the mean of its divisors is an integer number (8633328).

Almost surely, 2^90369951 is an apocalyptic number.

90369951 is a deficient number, since it is larger than the sum of its proper divisors (47763297).

90369951 is a wasteful number, since it uses less digits than its factorization.

90369951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13342.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 90369951 is about 9506.3111142020. The cubic root of 90369951 is about 448.7536723240.

The spelling of 90369951 in words is "ninety million, three hundred sixty-nine thousand, nine hundred fifty-one".