84590377 has 2 divisors, whose sum is σ = 84590378. Its totient is φ = 84590376.

The previous prime is 84590353. The next prime is 84590411. The reversal of 84590377 is 77309548.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64304361 + 20286016 = 8019^2 + 4504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84590377 is a prime.

It is not a weakly prime, because it can be changed into another prime (84590327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42295188 + 42295189.

It is an arithmetic number, because the mean of its divisors is an integer number (42295189).

Almost surely, 2^84590377 is an apocalyptic number.

It is an amenable number.

84590377 is a deficient number, since it is larger than the sum of its proper divisors (1).

84590377 is an equidigital number, since it uses as much as digits as its factorization.

84590377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 84590377 is about 9197.3027024231. The cubic root of 84590377 is about 438.9755384069.

The spelling of 84590377 in words is "eighty-four million, five hundred ninety thousand, three hundred seventy-seven".