88916509 has 8 divisors (see below), whose sum is σ = 97090560. Its totient is φ = 80757600.

The previous prime is 88916507. The next prime is 88916519. The reversal of 88916509 is 90561988.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 88916509 - 2¹ = 88916507 is a prime.

It is a super-2 number, since 2×88916509² = 15812291145494162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88916507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11044 + ... + 17314.

It is an arithmetic number, because the mean of its divisors is an integer number (12136320).

Almost surely, 2^88916509 is an apocalyptic number.

It is an amenable number.

88916509 is a deficient number, since it is larger than the sum of its proper divisors (8174051).

88916509 is a wasteful number, since it uses less digits than its factorization.

88916509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 88916509 is about 9429.5550796419. Note that the first 3 decimals coincide. The cubic root of 88916509 is about 446.3348531324.

It can be divided in two parts, 8891 and 6509, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 88916509 in words is "eighty-eight million, nine hundred sixteen thousand, five hundred nine".