87992701 has 2 divisors, whose sum is σ = 87992702. Its totient is φ = 87992700.

The previous prime is 87992693. The next prime is 87992711. The reversal of 87992701 is 10729978.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75672601 + 12320100 = 8699^2 + 3510^2 .

It is a cyclic number.

It is not a de Polignac number, because 87992701 - 2³ = 87992693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87992711) 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 as a sum of consecutive naturals, namely, 43996350 + 43996351.

It is an arithmetic number, because the mean of its divisors is an integer number (43996351).

Almost surely, 2^87992701 is an apocalyptic number.

It is an amenable number.

87992701 is a deficient number, since it is larger than the sum of its proper divisors (1).

87992701 is an equidigital number, since it uses as much as digits as its factorization.

87992701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 87992701 is about 9380.4424735723. The cubic root of 87992701 is about 444.7837201748.

The spelling of 87992701 in words is "eighty-seven million, nine hundred ninety-two thousand, seven hundred one".