87794501 has 2 divisors, whose sum is σ = 87794502. Its totient is φ = 87794500.

The previous prime is 87794491. The next prime is 87794503. The reversal of 87794501 is 10549778.

87794501 = 6625² + 6626².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43903876 + 43890625 = 6626^2 + 6625^2 .

It is a cyclic number.

It is not a de Polignac number, because 87794501 - 2¹⁰ = 87793477 is a prime.

Together with 87794503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87794503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43897250 + 43897251.

It is an arithmetic number, because the mean of its divisors is an integer number (43897251).

Almost surely, 2^87794501 is an apocalyptic number.

87794501 is the 6626-th centered square number.

It is an amenable number.

87794501 is a deficient number, since it is larger than the sum of its proper divisors (1).

87794501 is an equidigital number, since it uses as much as digits as its factorization.

87794501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 87794501 is about 9369.8719841842. The cubic root of 87794501 is about 444.4495166759.

The spelling of 87794501 in words is "eighty-seven million, seven hundred ninety-four thousand, five hundred one".