1299397 has 4 divisors (see below), whose sum is σ = 1417536. Its totient is φ = 1181260.

The previous prime is 1299379. The next prime is 1299437. The reversal of 1299397 is 7939921.

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.

It is a cyclic number.

It is not a de Polignac number, because 1299397 - 2⁷ = 1299269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299317) 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, 59053 + ... + 59074.

It is an arithmetic number, because the mean of its divisors is an integer number (354384).

2^1299397 is an apocalyptic number.

It is an amenable number.

1299397 is a deficient number, since it is larger than the sum of its proper divisors (118139).

1299397 is a wasteful number, since it uses less digits than its factorization.

1299397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118138.

The product of its digits is 30618, while the sum is 40.

The square root of 1299397 is about 1139.9109614351. The cubic root of 1299397 is about 109.1224110833.

The spelling of 1299397 in words is "one million, two hundred ninety-nine thousand, three hundred ninety-seven".