99703698731 has 8 divisors (see below), whose sum is σ = 122712244704. Its totient is φ = 78886442880.

The previous prime is 99703698727. The next prime is 99703698761. The reversal of 99703698731 is 13789630799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99703698731 - 2² = 99703698727 is a prime.

It is a super-2 number, since 2×99703698731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99703698761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547822430 + ... + 547822611.

It is an arithmetic number, because the mean of its divisors is an integer number (15339030588).

Almost surely, 2^99703698731 is an apocalyptic number.

99703698731 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

99703698731 is a deficient number, since it is larger than the sum of its proper divisors (23008545973).

99703698731 is a wasteful number, since it uses less digits than its factorization.

99703698731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095645061.

The product of its (nonzero) digits is 15431472, while the sum is 62.

The spelling of 99703698731 in words is "ninety-nine billion, seven hundred three million, six hundred ninety-eight thousand, seven hundred thirty-one".