97883987 has 2 divisors, whose sum is σ = 97883988. Its totient is φ = 97883986.

The previous prime is 97883971. The next prime is 97883993. The reversal of 97883987 is 78938879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97883987 - 2⁴ = 97883971 is a prime.

It is a super-2 number, since 2×97883987² = 19162549822032338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97883927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48941993 + 48941994.

It is an arithmetic number, because the mean of its divisors is an integer number (48941994).

Almost surely, 2^97883987 is an apocalyptic number.

97883987 is a deficient number, since it is larger than the sum of its proper divisors (1).

97883987 is an equidigital number, since it uses as much as digits as its factorization.

97883987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 59.

The square root of 97883987 is about 9893.6336600867. The cubic root of 97883987 is about 460.8616286121.

The spelling of 97883987 in words is "ninety-seven million, eight hundred eighty-three thousand, nine hundred eighty-seven".