88649439 has 4 divisors (see below), whose sum is σ = 118199256. Its totient is φ = 59099624.

The previous prime is 88649423. The next prime is 88649453. The reversal of 88649439 is 93494688.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 88649439 - 2⁴ = 88649423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88649391 and 88649400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88649419) 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, 14774904 + ... + 14774909.

It is an arithmetic number, because the mean of its divisors is an integer number (29549814).

Almost surely, 2^88649439 is an apocalyptic number.

88649439 is a deficient number, since it is larger than the sum of its proper divisors (29549817).

88649439 is a wasteful number, since it uses less digits than its factorization.

88649439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29549816.

The product of its digits is 1492992, while the sum is 51.

The square root of 88649439 is about 9415.3831042608. The cubic root of 88649439 is about 445.8875338963.

The spelling of 88649439 in words is "eighty-eight million, six hundred forty-nine thousand, four hundred thirty-nine".