91473715 has 8 divisors (see below), whose sum is σ = 113309568. Its totient is φ = 70818240.

The previous prime is 91473713. The next prime is 91473727. The reversal of 91473715 is 51737419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91473715 - 2¹ = 91473713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91473713) 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, 294922 + ... + 295231.

It is an arithmetic number, because the mean of its divisors is an integer number (14163696).

Almost surely, 2^91473715 is an apocalyptic number.

91473715 is a deficient number, since it is larger than the sum of its proper divisors (21835853).

91473715 is a wasteful number, since it uses less digits than its factorization.

91473715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590189.

The product of its digits is 26460, while the sum is 37.

The square root of 91473715 is about 9564.1891972085. The cubic root of 91473715 is about 450.5732858027.

The spelling of 91473715 in words is "ninety-one million, four hundred seventy-three thousand, seven hundred fifteen".