84408537 has 4 divisors (see below), whose sum is σ = 112544720. Its totient is φ = 56272356.

The previous prime is 84408523. The next prime is 84408557. The reversal of 84408537 is 73580448.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 84408537 - 2⁴ = 84408521 is a prime.

It is a super-2 number, since 2×84408537² = 14249602236960738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84408495 and 84408504.

It is not an unprimeable number, because it can be changed into a prime (84408517) 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, 14068087 + ... + 14068092.

It is an arithmetic number, because the mean of its divisors is an integer number (28136180).

Almost surely, 2^84408537 is an apocalyptic number.

It is an amenable number.

84408537 is a deficient number, since it is larger than the sum of its proper divisors (28136183).

84408537 is a wasteful number, since it uses less digits than its factorization.

84408537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28136182.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 84408537 is about 9187.4118771284. The cubic root of 84408537 is about 438.6607643131.

The spelling of 84408537 in words is "eighty-four million, four hundred eight thousand, five hundred thirty-seven".