84372453 has 18 divisors (see below), whose sum is σ = 133959462. Its totient is φ = 51134160.

The previous prime is 84372439. The next prime is 84372499. The reversal of 84372453 is 35427348.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 81757764 + 2614689 = 9042^2 + 1617^2 .

It is not a de Polignac number, because 84372453 - 2¹⁶ = 84306917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84372433) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 37650 + ... + 39827.

Almost surely, 2^84372453 is an apocalyptic number.

It is an amenable number.

84372453 is a deficient number, since it is larger than the sum of its proper divisors (49587009).

84372453 is a wasteful number, since it uses less digits than its factorization.

84372453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77505 (or 77491 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 84372453 is about 9185.4478932712. The cubic root of 84372453 is about 438.5982473701.

The spelling of 84372453 in words is "eighty-four million, three hundred seventy-two thousand, four hundred fifty-three".