88978761 has 6 divisors (see below), whose sum is σ = 128524890. Its totient is φ = 59319168.

The previous prime is 88978759. The next prime is 88978763. The reversal of 88978761 is 16787988.

It is an interprime number because it is at equal distance from previous prime (88978759) and next prime (88978763).

It can be written as a sum of positive squares in only one way, i.e., 54686025 + 34292736 = 7395^2 + 5856^2 .

It is not a de Polignac number, because 88978761 - 2¹ = 88978759 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 88978698 and 88978707.

It is not an unprimeable number, because it can be changed into a prime (88978763) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4943256 + ... + 4943273.

It is an arithmetic number, because the mean of its divisors is an integer number (21420815).

Almost surely, 2^88978761 is an apocalyptic number.

It is an amenable number.

88978761 is a deficient number, since it is larger than the sum of its proper divisors (39546129).

88978761 is a wasteful number, since it uses less digits than its factorization.

88978761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9886535 (or 9886532 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 54.

The square root of 88978761 is about 9432.8554001426. The cubic root of 88978761 is about 446.4389911070.

The spelling of 88978761 in words is "eighty-eight million, nine hundred seventy-eight thousand, seven hundred sixty-one".