88649437 has 4 divisors (see below), whose sum is σ = 88690140. Its totient is φ = 88608736.

The previous prime is 88649423. The next prime is 88649453. The reversal of 88649437 is 73494688.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51998521 + 36650916 = 7211^2 + 6054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88649437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88649137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16888 + ... + 21505.

It is an arithmetic number, because the mean of its divisors is an integer number (22172535).

Almost surely, 2^88649437 is an apocalyptic number.

It is an amenable number.

88649437 is a deficient number, since it is larger than the sum of its proper divisors (40703).

88649437 is a wasteful number, since it uses less digits than its factorization.

88649437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40702.

The product of its digits is 1161216, while the sum is 49.

The square root of 88649437 is about 9415.3829980516. The cubic root of 88649437 is about 445.8875305431.

The spelling of 88649437 in words is "eighty-eight million, six hundred forty-nine thousand, four hundred thirty-seven".