91407934 has 16 divisors (see below), whose sum is σ = 145776672. Its totient is φ = 42890848.

The previous prime is 91407931. The next prime is 91407937. The reversal of 91407934 is 43970419.

It is an interprime number because it is at equal distance from previous prime (91407931) and next prime (91407937).

It is a junction number, because it is equal to n+sod(n) for n = 91407893 and 91407902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91407931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16309 + ... + 21184.

It is an arithmetic number, because the mean of its divisors is an integer number (9111042).

Almost surely, 2^91407934 is an apocalyptic number.

91407934 is a deficient number, since it is larger than the sum of its proper divisors (54368738).

91407934 is a wasteful number, since it uses less digits than its factorization.

91407934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37571.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 91407934 is about 9560.7496567999. The cubic root of 91407934 is about 450.4652537890.

The spelling of 91407934 in words is "ninety-one million, four hundred seven thousand, nine hundred thirty-four".