90929928 has 16 divisors (see below), whose sum is σ = 227324880. Its totient is φ = 30309968.

The previous prime is 90929899. The next prime is 90929929. The reversal of 90929928 is 82992909.

It is not an unprimeable number, because it can be changed into a prime (90929929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1894350 + ... + 1894397.

It is an arithmetic number, because the mean of its divisors is an integer number (14207805).

Almost surely, 2^90929928 is an apocalyptic number.

It is an amenable number.

90929928 is an abundant number, since it is smaller than the sum of its proper divisors (136394952).

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

90929928 is a wasteful number, since it uses less digits than its factorization.

90929928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788756 (or 3788752 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 90929928 is about 9535.7185361146. The cubic root of 90929928 is about 449.6786644228.

The spelling of 90929928 in words is "ninety million, nine hundred twenty-nine thousand, nine hundred twenty-eight".