84707457 has 16 divisors (see below), whose sum is σ = 114196992. Its totient is φ = 55848960.

The previous prime is 84707449. The next prime is 84707461. The reversal of 84707457 is 75470748.

It is not a de Polignac number, because 84707457 - 2³ = 84707449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84707417) 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, 139248 + ... + 139854.

It is an arithmetic number, because the mean of its divisors is an integer number (7137312).

Almost surely, 2^84707457 is an apocalyptic number.

It is an amenable number.

84707457 is a deficient number, since it is larger than the sum of its proper divisors (29489535).

84707457 is a wasteful number, since it uses less digits than its factorization.

84707457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048.

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 84707457 is about 9203.6654111283. The cubic root of 84707457 is about 439.1779710568.

The spelling of 84707457 in words is "eighty-four million, seven hundred seven thousand, four hundred fifty-seven".