88887761 has 4 divisors (see below), whose sum is σ = 90214512. Its totient is φ = 87561012.

The previous prime is 88887739. The next prime is 88887769. The reversal of 88887761 is 16778888.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88887761 - 2¹⁰ = 88886737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (88887769) 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, 663275 + ... + 663408.

It is an arithmetic number, because the mean of its divisors is an integer number (22553628).

Almost surely, 2^88887761 is an apocalyptic number.

It is an amenable number.

88887761 is a deficient number, since it is larger than the sum of its proper divisors (1326751).

88887761 is a wasteful number, since it uses less digits than its factorization.

88887761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326750.

The product of its digits is 1204224, while the sum is 53.

The square root of 88887761 is about 9428.0306002898. The cubic root of 88887761 is about 446.2867457652.

The spelling of 88887761 in words is "eighty-eight million, eight hundred eighty-seven thousand, seven hundred sixty-one".