86902469 has 2 divisors, whose sum is σ = 86902470. Its totient is φ = 86902468.

The previous prime is 86902433. The next prime is 86902513. The reversal of 86902469 is 96420968.

It is an a-pointer prime, because the next prime (86902513) can be obtained adding 86902469 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71402500 + 15499969 = 8450^2 + 3937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86902469 is a prime.

It is a super-2 number, since 2×86902469² = 15104078236591922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86902069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43451234 + 43451235.

It is an arithmetic number, because the mean of its divisors is an integer number (43451235).

Almost surely, 2^86902469 is an apocalyptic number.

It is an amenable number.

86902469 is a deficient number, since it is larger than the sum of its proper divisors (1).

86902469 is an equidigital number, since it uses as much as digits as its factorization.

86902469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 86902469 is about 9322.1493766191. The cubic root of 86902469 is about 442.9391199861.

The spelling of 86902469 in words is "eighty-six million, nine hundred two thousand, four hundred sixty-nine".