84970457 has 16 divisors (see below), whose sum is σ = 101243520. Its totient is φ = 70291200.

The previous prime is 84970453. The next prime is 84970513. The reversal of 84970457 is 75407948.

It is a cyclic number.

It is not a de Polignac number, because 84970457 - 2² = 84970453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84970453) 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, 5969 + ... + 14337.

It is an arithmetic number, because the mean of its divisors is an integer number (6327720).

Almost surely, 2^84970457 is an apocalyptic number.

It is an amenable number.

84970457 is a deficient number, since it is larger than the sum of its proper divisors (16273063).

84970457 is a wasteful number, since it uses less digits than its factorization.

84970457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8464.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 84970457 is about 9217.9421239233. The cubic root of 84970457 is about 439.6320218860.

The spelling of 84970457 in words is "eighty-four million, nine hundred seventy thousand, four hundred fifty-seven".