87796901 has 4 divisors (see below), whose sum is σ = 87969900. Its totient is φ = 87623904.

The previous prime is 87796879. The next prime is 87796913. The reversal of 87796901 is 10969778.

It is a Cunningham number, because it is equal to 9370²+1.

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 71402500 + 16394401 = 8450^2 + 4049^2 .

It is a cyclic number.

It is not a de Polignac number, because 87796901 - 2⁶ = 87796837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87796001) 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, 85736 + ... + 86753.

It is an arithmetic number, because the mean of its divisors is an integer number (21992475).

Almost surely, 2^87796901 is an apocalyptic number.

It is an amenable number.

87796901 is a deficient number, since it is larger than the sum of its proper divisors (172999).

87796901 is a wasteful number, since it uses less digits than its factorization.

87796901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172998.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 87796901 is about 9370.0000533618. Note that the first 4 decimals coincide. The cubic root of 87796901 is about 444.4535665466.

The spelling of 87796901 in words is "eighty-seven million, seven hundred ninety-six thousand, nine hundred one".