90285951 has 32 divisors (see below), whose sum is σ = 140492800. Its totient is φ = 50512896.

The previous prime is 90285947. The next prime is 90285953. The reversal of 90285951 is 15958209.

It is not a de Polignac number, because 90285951 - 2² = 90285947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90285953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258525 + ... + 258873.

It is an arithmetic number, because the mean of its divisors is an integer number (4390400).

Almost surely, 2^90285951 is an apocalyptic number.

90285951 is a deficient number, since it is larger than the sum of its proper divisors (50206849).

90285951 is a wasteful number, since it uses less digits than its factorization.

90285951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583.

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 90285951 is about 9501.8919694974. The cubic root of 90285951 is about 448.6145885043.

The spelling of 90285951 in words is "ninety million, two hundred eighty-five thousand, nine hundred fifty-one".