91420594 has 16 divisors (see below), whose sum is σ = 147246336. Its totient is φ = 42414400.

The previous prime is 91420591. The next prime is 91420597. The reversal of 91420594 is 49502419.

It is an interprime number because it is at equal distance from previous prime (91420591) and next prime (91420597).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (91420591) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16522 + ... + 21349.

It is an arithmetic number, because the mean of its divisors is an integer number (9202896).

Almost surely, 2^91420594 is an apocalyptic number.

91420594 is a deficient number, since it is larger than the sum of its proper divisors (55825742).

91420594 is a wasteful number, since it uses less digits than its factorization.

91420594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37961.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 91420594 is about 9561.4117158503. The cubic root of 91420594 is about 450.4860493101.

The spelling of 91420594 in words is "ninety-one million, four hundred twenty thousand, five hundred ninety-four".