84801957 has 16 divisors (see below), whose sum is σ = 117000192. Its totient is φ = 54578160.

The previous prime is 84801953. The next prime is 84801971. The reversal of 84801957 is 75910848.

It is not a de Polignac number, because 84801957 - 2² = 84801953 is a prime.

It is a super-2 number, since 2×84801957² = 14382743822059698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84801953) 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, 50038 + ... + 51704.

It is an arithmetic number, because the mean of its divisors is an integer number (7312512).

Almost surely, 2^84801957 is an apocalyptic number.

It is an amenable number.

84801957 is a deficient number, since it is larger than the sum of its proper divisors (32198235).

84801957 is a wasteful number, since it uses less digits than its factorization.

84801957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 84801957 is about 9208.7978042739. The cubic root of 84801957 is about 439.3412266343.

It can be divided in two parts, 84801 and 957, that added together give a palindrome (85758).

The spelling of 84801957 in words is "eighty-four million, eight hundred one thousand, nine hundred fifty-seven".