93991480 has 64 divisors (see below), whose sum is σ = 242870400. Its totient is φ = 32376960.

The previous prime is 93991477. The next prime is 93991483. The reversal of 93991480 is 8419939.

It is an interprime number because it is at equal distance from previous prime (93991477) and next prime (93991483).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93991483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2739 + ... + 13981.

It is an arithmetic number, because the mean of its divisors is an integer number (3794850).

Almost surely, 2^93991480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 93991480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121435200).

93991480 is an abundant number, since it is smaller than the sum of its proper divisors (148878920).

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

93991480 is a wasteful number, since it uses less digits than its factorization.

93991480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284 (or 11280 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 93991480 is about 9694.9203194250. The cubic root of 93991480 is about 454.6698567136.

The spelling of 93991480 in words is "ninety-three million, nine hundred ninety-one thousand, four hundred eighty".