84402477 has 12 divisors (see below), whose sum is σ = 124888764. Its totient is φ = 54895680.

The previous prime is 84402463. The next prime is 84402481. The reversal of 84402477 is 77420448.

It can be written as a sum of positive squares in 2 ways, for example, as 4639716 + 79762761 = 2154^2 + 8931^2 .

It is not a de Polignac number, because 84402477 - 2⁶ = 84402413 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84402407) 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 11 ways as a sum of consecutive naturals, for example, 113998 + ... + 114735.

It is an arithmetic number, because the mean of its divisors is an integer number (10407397).

Almost surely, 2^84402477 is an apocalyptic number.

It is an amenable number.

84402477 is a deficient number, since it is larger than the sum of its proper divisors (40486287).

84402477 is a wasteful number, since it uses less digits than its factorization.

84402477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228780 (or 228777 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 84402477 is about 9187.0820721271. The cubic root of 84402477 is about 438.6502663708.

The spelling of 84402477 in words is "eighty-four million, four hundred two thousand, four hundred seventy-seven".