93816990 has 48 divisors (see below), whose sum is σ = 244530000. Its totient is φ = 24955776.

The previous prime is 93816971. The next prime is 93816997. The reversal of 93816990 is 9961839.

It is a super-2 number, since 2×93816990² = 17603255225320200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93816997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43866 + ... + 45954.

It is an arithmetic number, because the mean of its divisors is an integer number (5094375).

Almost surely, 2^93816990 is an apocalyptic number.

93816990 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

93816990 is an abundant number, since it is smaller than the sum of its proper divisors (150713010).

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

93816990 is a wasteful number, since it uses less digits than its factorization.

93816990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601 (or 2598 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 93816990 is about 9685.9170964860. The cubic root of 93816990 is about 454.3883259199.

The spelling of 93816990 in words is "ninety-three million, eight hundred sixteen thousand, nine hundred ninety".