90651944 has 32 divisors (see below), whose sum is σ = 173024640. Its totient is φ = 44520000.

The previous prime is 90651937. The next prime is 90651949. The reversal of 90651944 is 44915609.

It is a junction number, because it is equal to n+sod(n) for n = 90651898 and 90651907.

It is not an unprimeable number, because it can be changed into a prime (90651949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121637 + ... + 122379.

It is an arithmetic number, because the mean of its divisors is an integer number (5407020).

Almost surely, 2^90651944 is an apocalyptic number.

It is an amenable number.

90651944 is a deficient number, since it is larger than the sum of its proper divisors (82372696).

90651944 is a wasteful number, since it uses less digits than its factorization.

90651944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 90651944 is about 9521.1314453693. The cubic root of 90651944 is about 449.2199556233.

The spelling of 90651944 in words is "ninety million, six hundred fifty-one thousand, nine hundred forty-four".