90978114 has 16 divisors (see below), whose sum is σ = 184001760. Its totient is φ = 29985120.

The previous prime is 90978109. The next prime is 90978119. The reversal of 90978114 is 41187909.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90978109) and next prime (90978119).

It is not an unprimeable number, because it can be changed into a prime (90978119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84652 + ... + 85719.

It is an arithmetic number, because the mean of its divisors is an integer number (11500110).

Almost surely, 2^90978114 is an apocalyptic number.

90978114 is an abundant number, since it is smaller than the sum of its proper divisors (93023646).

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

90978114 is a wasteful number, since it uses less digits than its factorization.

90978114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170465.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 90978114 is about 9538.2448070911. The cubic root of 90978114 is about 449.7580823153.

The spelling of 90978114 in words is "ninety million, nine hundred seventy-eight thousand, one hundred fourteen".