87627697 has 2 divisors, whose sum is σ = 87627698. Its totient is φ = 87627696.

The previous prime is 87627691. The next prime is 87627713. The reversal of 87627697 is 79672678.

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., 81432576 + 6195121 = 9024^2 + 2489^2 .

It is a cyclic number.

It is not a de Polignac number, because 87627697 - 2³ = 87627689 is a prime.

It is a super-2 number, since 2×87627697² = 15357226563047618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87627691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43813848 + 43813849.

It is an arithmetic number, because the mean of its divisors is an integer number (43813849).

Almost surely, 2^87627697 is an apocalyptic number.

It is an amenable number.

87627697 is a deficient number, since it is larger than the sum of its proper divisors (1).

87627697 is an equidigital number, since it uses as much as digits as its factorization.

87627697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 52.

The square root of 87627697 is about 9360.9666701682. The cubic root of 87627697 is about 444.1678629005.

The spelling of 87627697 in words is "eighty-seven million, six hundred twenty-seven thousand, six hundred ninety-seven".