97309969903 has 4 divisors (see below), whose sum is σ = 97310631640. Its totient is φ = 97309308168.

The previous prime is 97309969879. The next prime is 97309969907. The reversal of 97309969903 is 30996990379.

97309969903 is a nontrivial binomial coefficient, being equal to C(441158, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(97309969903) divides (97309969903-1)³.

It is a cyclic number.

It is not a de Polignac number, because 97309969903 - 2⁵ = 97309969871 is a prime.

It is a deceptive number, since it divides R_97309969902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97309969907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 441157.

It is an arithmetic number, because the mean of its divisors is an integer number (24327657910).

Almost surely, 2^97309969903 is an apocalyptic number.

97309969903 is the 441157-th triangular number and also the 220579-th hexagonal number.

97309969903 is the 147053-rd centered nonagonal number.

97309969903 is a deficient number, since it is larger than the sum of its proper divisors (661737).

97309969903 is a wasteful number, since it uses less digits than its factorization.

97309969903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661736.

The product of its (nonzero) digits is 22320522, while the sum is 64.

The spelling of 97309969903 in words is "ninety-seven billion, three hundred nine million, nine hundred sixty-nine thousand, nine hundred three".