97878607 has 2 divisors, whose sum is σ = 97878608. Its totient is φ = 97878606.

The previous prime is 97878601. The next prime is 97878611. The reversal of 97878607 is 70687879.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97878607 - 2⁷ = 97878479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97878601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48939303 + 48939304.

It is an arithmetic number, because the mean of its divisors is an integer number (48939304).

Almost surely, 2^97878607 is an apocalyptic number.

97878607 is a deficient number, since it is larger than the sum of its proper divisors (1).

97878607 is an equidigital number, since it uses as much as digits as its factorization.

97878607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 52.

The square root of 97878607 is about 9893.3617643347. The cubic root of 97878607 is about 460.8531850077.

The spelling of 97878607 in words is "ninety-seven million, eight hundred seventy-eight thousand, six hundred seven".