88477681 has 2 divisors, whose sum is σ = 88477682. Its totient is φ = 88477680.

The previous prime is 88477663. The next prime is 88477729. The reversal of 88477681 is 18677488.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84640000 + 3837681 = 9200^2 + 1959^2 .

It is a cyclic number.

It is not a de Polignac number, because 88477681 - 2¹³ = 88469489 is a prime.

It is a super-2 number, since 2×88477681² = 15656600070275522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88477601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44238840 + 44238841.

It is an arithmetic number, because the mean of its divisors is an integer number (44238841).

Almost surely, 2^88477681 is an apocalyptic number.

It is an amenable number.

88477681 is a deficient number, since it is larger than the sum of its proper divisors (1).

88477681 is an equidigital number, since it uses as much as digits as its factorization.

88477681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 49.

The square root of 88477681 is about 9406.2575448475. The cubic root of 88477681 is about 445.5993791672.

The spelling of 88477681 in words is "eighty-eight million, four hundred seventy-seven thousand, six hundred eighty-one".