91379454 has 32 divisors (see below), whose sum is σ = 194050080. Its totient is φ = 28588032.

The previous prime is 91379441. The next prime is 91379461. The reversal of 91379454 is 45497319.

It is a super-2 number, since 2×91379454² = 16700409226676232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43132 + ... + 45200.

It is an arithmetic number, because the mean of its divisors is an integer number (6064065).

Almost surely, 2^91379454 is an apocalyptic number.

91379454 is an abundant number, since it is smaller than the sum of its proper divisors (102670626).

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

91379454 is a wasteful number, since it uses less digits than its factorization.

91379454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524.

The product of its digits is 136080, while the sum is 42.

The square root of 91379454 is about 9559.2601178125. The cubic root of 91379454 is about 450.4184650603.

The spelling of 91379454 in words is "ninety-one million, three hundred seventy-nine thousand, four hundred fifty-four".