84472690 has 16 divisors (see below), whose sum is σ = 152250840. Its totient is φ = 33744640.

The previous prime is 84472681. The next prime is 84472699. The reversal of 84472690 is 9627448.

It is an interprime number because it is at equal distance from previous prime (84472681) and next prime (84472699).

It can be written as a sum of positive squares in 4 ways, for example, as 74149321 + 10323369 = 8611^2 + 3213^2 .

It is a super-2 number, since 2×84472690² = 14271270711672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84472699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3066 + ... + 13354.

Almost surely, 2^84472690 is an apocalyptic number.

84472690 is a deficient number, since it is larger than the sum of its proper divisors (67778150).

84472690 is a wasteful number, since it uses less digits than its factorization.

84472690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11117.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 84472690 is about 9190.9025672129. The cubic root of 84472690 is about 438.7718679154.

The spelling of 84472690 in words is "eighty-four million, four hundred seventy-two thousand, six hundred ninety".