96878591 has 4 divisors (see below), whose sum is σ = 97585872. Its totient is φ = 96171312.

The previous prime is 96878581. The next prime is 96878641. The reversal of 96878591 is 19587869.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-96878591 is a prime.

It is a super-2 number, since 2×96878591² = 18770922788290562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96878581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353435 + ... + 353708.

It is an arithmetic number, because the mean of its divisors is an integer number (24396468).

Almost surely, 2^96878591 is an apocalyptic number.

96878591 is a deficient number, since it is larger than the sum of its proper divisors (707281).

96878591 is a wasteful number, since it uses less digits than its factorization.

96878591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707280.

The product of its digits is 1088640, while the sum is 53.

The square root of 96878591 is about 9842.6922638067. The cubic root of 96878591 is about 459.2783122654.

The spelling of 96878591 in words is "ninety-six million, eight hundred seventy-eight thousand, five hundred ninety-one".