13765497 has 4 divisors (see below), whose sum is σ = 18354000. Its totient is φ = 9176996.

The previous prime is 13765483. The next prime is 13765511. The reversal of 13765497 is 79456731.

13765497 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79456731 = 3 ⋅26485577.

It is an interprime number because it is at equal distance from previous prime (13765483) and next prime (13765511).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13765497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13765447) 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, 2294247 + ... + 2294252.

It is an arithmetic number, because the mean of its divisors is an integer number (4588500).

Almost surely, 2^13765497 is an apocalyptic number.

It is an amenable number.

13765497 is a deficient number, since it is larger than the sum of its proper divisors (4588503).

13765497 is an equidigital number, since it uses as much as digits as its factorization.

13765497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588502.

The product of its digits is 158760, while the sum is 42.

The square root of 13765497 is about 3710.1882701556. The cubic root of 13765497 is about 239.6609622536.

The spelling of 13765497 in words is "thirteen million, seven hundred sixty-five thousand, four hundred ninety-seven".