123699497 has 16 divisors (see below), whose sum is σ = 137313792. Its totient is φ = 110837760.

The previous prime is 123699493. The next prime is 123699503. The reversal of 123699497 is 794996321.

It is a cyclic number.

It is not a de Polignac number, because 123699497 - 2² = 123699493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123699491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99872 + ... + 101102.

It is an arithmetic number, because the mean of its divisors is an integer number (8582112).

Almost surely, 2^123699497 is an apocalyptic number.

123699497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

123699497 is a deficient number, since it is larger than the sum of its proper divisors (13614295).

123699497 is a wasteful number, since it uses less digits than its factorization.

123699497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528.

The product of its digits is 734832, while the sum is 50.

The square root of 123699497 is about 11122.0275579590. The cubic root of 123699497 is about 498.2599474590.

The spelling of 123699497 in words is "one hundred twenty-three million, six hundred ninety-nine thousand, four hundred ninety-seven".