87796709 has 32 divisors (see below), whose sum is σ = 118917120. Its totient is φ = 62596800.

The previous prime is 87796691. The next prime is 87796741. The reversal of 87796709 is 90769778.

It is a happy number.

It is not a de Polignac number, because 87796709 - 2¹⁶ = 87731173 is a prime.

It is a super-2 number, since 2×87796709² = 15416524222461362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87796759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138824 + ... + 139454.

It is an arithmetic number, because the mean of its divisors is an integer number (3716160).

Almost surely, 2^87796709 is an apocalyptic number.

It is an amenable number.

87796709 is a deficient number, since it is larger than the sum of its proper divisors (31120411).

87796709 is a wasteful number, since it uses less digits than its factorization.

87796709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The square root of 87796709 is about 9369.9898078920. The cubic root of 87796709 is about 444.4532425596.

The spelling of 87796709 in words is "eighty-seven million, seven hundred ninety-six thousand, seven hundred nine".