90831950 has 48 divisors (see below), whose sum is σ = 185345280. Its totient is φ = 32844000.

The previous prime is 90831943. The next prime is 90831971. The reversal of 90831950 is 5913809.

It is a self number, because there is not a number n which added to its sum of digits gives 90831950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131105 + ... + 131795.

It is an arithmetic number, because the mean of its divisors is an integer number (3861360).

Almost surely, 2^90831950 is an apocalyptic number.

90831950 is an abundant number, since it is smaller than the sum of its proper divisors (94513330).

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

90831950 is a wasteful number, since it uses less digits than its factorization.

90831950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 90831950 is about 9530.5797305306. The cubic root of 90831950 is about 449.5170951383.

The spelling of 90831950 in words is "ninety million, eight hundred thirty-one thousand, nine hundred fifty".