84807497 has 2 divisors, whose sum is σ = 84807498. Its totient is φ = 84807496.

The previous prime is 84807493. The next prime is 84807511. The reversal of 84807497 is 79470848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84566416 + 241081 = 9196^2 + 491^2 .

It is a cyclic number.

It is not a de Polignac number, because 84807497 - 2² = 84807493 is a prime.

It is not a weakly prime, because it can be changed into another prime (84807493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42403748 + 42403749.

It is an arithmetic number, because the mean of its divisors is an integer number (42403749).

Almost surely, 2^84807497 is an apocalyptic number.

It is an amenable number.

84807497 is a deficient number, since it is larger than the sum of its proper divisors (1).

84807497 is an equidigital number, since it uses as much as digits as its factorization.

84807497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 84807497 is about 9209.0985986686. The cubic root of 84807497 is about 439.3507936203.

The spelling of 84807497 in words is "eighty-four million, eight hundred seven thousand, four hundred ninety-seven".