84918407 has 8 divisors (see below), whose sum is σ = 97107456. Its totient is φ = 72743832.

The previous prime is 84918403. The next prime is 84918469. The reversal of 84918407 is 70481948.

It is a happy number.

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

It is not a de Polignac number, because 84918407 - 2² = 84918403 is a prime.

It is a super-2 number, since 2×84918407² = 14422271694835298, 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 (84918403) 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, 16238 + ... + 20820.

It is an arithmetic number, because the mean of its divisors is an integer number (12138432).

Almost surely, 2^84918407 is an apocalyptic number.

84918407 is a deficient number, since it is larger than the sum of its proper divisors (12189049).

84918407 is a wasteful number, since it uses less digits than its factorization.

84918407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7237.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 84918407 is about 9215.1183931624. The cubic root of 84918407 is about 439.5422356962.

The spelling of 84918407 in words is "eighty-four million, nine hundred eighteen thousand, four hundred seven".