97800007 has 2 divisors, whose sum is σ = 97800008. Its totient is φ = 97800006.

The previous prime is 97799987. The next prime is 97800013. The reversal of 97800007 is 70000879.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97800007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97800037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48900003 + 48900004.

It is an arithmetic number, because the mean of its divisors is an integer number (48900004).

Almost surely, 2^97800007 is an apocalyptic number.

97800007 is a deficient number, since it is larger than the sum of its proper divisors (1).

97800007 is an equidigital number, since it uses as much as digits as its factorization.

97800007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 97800007 is about 9889.3886059756. The cubic root of 97800007 is about 460.7297914767.

The spelling of 97800007 in words is "ninety-seven million, eight hundred thousand, seven".