97707381407 has 2 divisors, whose sum is σ = 97707381408. Its totient is φ = 97707381406.

The previous prime is 97707381397. The next prime is 97707381503. The reversal of 97707381407 is 70418370779.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97707381407 - 2¹⁰ = 97707380383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97707384407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48853690703 + 48853690704.

It is an arithmetic number, because the mean of its divisors is an integer number (48853690704).

Almost surely, 2^97707381407 is an apocalyptic number.

97707381407 is a deficient number, since it is larger than the sum of its proper divisors (1).

97707381407 is an equidigital number, since it uses as much as digits as its factorization.

97707381407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2074464, while the sum is 53.

The spelling of 97707381407 in words is "ninety-seven billion, seven hundred seven million, three hundred eighty-one thousand, four hundred seven".