88786381 has 2 divisors, whose sum is σ = 88786382. Its totient is φ = 88786380.

The previous prime is 88786367. The next prime is 88786471. The reversal of 88786381 is 18368788.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79816356 + 8970025 = 8934^2 + 2995^2 .

It is a cyclic number.

It is not a de Polignac number, because 88786381 - 2⁷ = 88786253 is a prime.

It is a super-2 number, since 2×88786381² = 15766042902154322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88786301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44393190 + 44393191.

It is an arithmetic number, because the mean of its divisors is an integer number (44393191).

Almost surely, 2^88786381 is an apocalyptic number.

It is an amenable number.

88786381 is a deficient number, since it is larger than the sum of its proper divisors (1).

88786381 is an equidigital number, since it uses as much as digits as its factorization.

88786381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 49.

The square root of 88786381 is about 9422.6525458599. The cubic root of 88786381 is about 446.1170120030.

The spelling of 88786381 in words is "eighty-eight million, seven hundred eighty-six thousand, three hundred eighty-one".