84106507 has 4 divisors (see below), whose sum is σ = 85361896. Its totient is φ = 82851120.

The previous prime is 84106501. The next prime is 84106511. The reversal of 84106507 is 70560148.

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

It is a cyclic number.

It is not a de Polignac number, because 84106507 - 2²³ = 75717899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84106501) 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, 627594 + ... + 627727.

It is an arithmetic number, because the mean of its divisors is an integer number (21340474).

Almost surely, 2^84106507 is an apocalyptic number.

84106507 is a deficient number, since it is larger than the sum of its proper divisors (1255389).

84106507 is a wasteful number, since it uses less digits than its factorization.

84106507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255388.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 84106507 is about 9170.9599824664. The cubic root of 84106507 is about 438.1369347985.

The spelling of 84106507 in words is "eighty-four million, one hundred six thousand, five hundred seven".