88507649 has 4 divisors (see below), whose sum is σ = 88568580. Its totient is φ = 88446720.

The previous prime is 88507633. The next prime is 88507691. The reversal of 88507649 is 94670588.

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 12730624 + 75777025 = 3568^2 + 8705^2 .

It is a cyclic number.

It is not a de Polignac number, because 88507649 - 2⁴ = 88507633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88507619) 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, 28232 + ... + 31209.

It is an arithmetic number, because the mean of its divisors is an integer number (22142145).

Almost surely, 2^88507649 is an apocalyptic number.

It is an amenable number.

88507649 is a deficient number, since it is larger than the sum of its proper divisors (60931).

88507649 is a wasteful number, since it uses less digits than its factorization.

88507649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60930.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 88507649 is about 9407.8503920928. The cubic root of 88507649 is about 445.6496826812.

The spelling of 88507649 in words is "eighty-eight million, five hundred seven thousand, six hundred forty-nine".