84252457 has 4 divisors (see below), whose sum is σ = 85842180. Its totient is φ = 82662736.

The previous prime is 84252449. The next prime is 84252463. The reversal of 84252457 is 75425248.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26050816 + 58201641 = 5104^2 + 7629^2 .

It is a cyclic number.

It is not a de Polignac number, because 84252457 - 2³ = 84252449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84250457) 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, 794782 + ... + 794887.

It is an arithmetic number, because the mean of its divisors is an integer number (21460545).

Almost surely, 2^84252457 is an apocalyptic number.

It is an amenable number.

84252457 is a deficient number, since it is larger than the sum of its proper divisors (1589723).

84252457 is a wasteful number, since it uses less digits than its factorization.

84252457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589722.

The product of its digits is 89600, while the sum is 37.

The square root of 84252457 is about 9178.9137156855. The cubic root of 84252457 is about 438.3902213157.

The spelling of 84252457 in words is "eighty-four million, two hundred fifty-two thousand, four hundred fifty-seven".