84640514 has 32 divisors (see below), whose sum is σ = 149022720. Its totient is φ = 35302608.

The previous prime is 84640511. The next prime is 84640519. The reversal of 84640514 is 41504648.

It is a super-2 number, since 2×84640514² = 14328033220368392, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84640511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201797 + ... + 202215.

It is an arithmetic number, because the mean of its divisors is an integer number (4656960).

Almost surely, 2^84640514 is an apocalyptic number.

84640514 is a deficient number, since it is larger than the sum of its proper divisors (64382206).

84640514 is a wasteful number, since it uses less digits than its factorization.

84640514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 84640514 is about 9200.0279347402. The cubic root of 84640514 is about 439.0622487024.

The spelling of 84640514 in words is "eighty-four million, six hundred forty thousand, five hundred fourteen".