90768379 has 6 divisors (see below), whose sum is σ = 98287836. Its totient is φ = 83786040.

The previous prime is 90768371. The next prime is 90768409. The reversal of 90768379 is 97386709.

It is not a de Polignac number, because 90768379 - 2³ = 90768371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90768371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 268377 + ... + 268714.

It is an arithmetic number, because the mean of its divisors is an integer number (16381306).

Almost surely, 2^90768379 is an apocalyptic number.

90768379 is a deficient number, since it is larger than the sum of its proper divisors (7519457).

90768379 is a wasteful number, since it uses less digits than its factorization.

90768379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537117 (or 537104 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 90768379 is about 9527.2440401199. The cubic root of 90768379 is about 449.4122020897.

The spelling of 90768379 in words is "ninety million, seven hundred sixty-eight thousand, three hundred seventy-nine".