86912477 has 2 divisors, whose sum is σ = 86912478. Its totient is φ = 86912476.

The previous prime is 86912473. The next prime is 86912491. The reversal of 86912477 is 77421968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47045881 + 39866596 = 6859^2 + 6314^2 .

It is a cyclic number.

It is not a de Polignac number, because 86912477 - 2² = 86912473 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86912473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43456238 + 43456239.

It is an arithmetic number, because the mean of its divisors is an integer number (43456239).

Almost surely, 2^86912477 is an apocalyptic number.

It is an amenable number.

86912477 is a deficient number, since it is larger than the sum of its proper divisors (1).

86912477 is an equidigital number, since it uses as much as digits as its factorization.

86912477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 86912477 is about 9322.6861472432. The cubic root of 86912477 is about 442.9561228193.

The spelling of 86912477 in words is "eighty-six million, nine hundred twelve thousand, four hundred seventy-seven".