11880397 has 4 divisors (see below), whose sum is σ = 12396960. Its totient is φ = 11363836.

The previous prime is 11880389. The next prime is 11880403. The reversal of 11880397 is 79308811.

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: 79308811 = 79 ⋅1003909.

It is a cyclic number.

It is not a de Polignac number, because 11880397 - 2³ = 11880389 is a prime.

It is a super-2 number, since 2×11880397² = 282287665755218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11880307) 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, 258247 + ... + 258292.

It is an arithmetic number, because the mean of its divisors is an integer number (3099240).

Almost surely, 2^11880397 is an apocalyptic number.

It is an amenable number.

11880397 is a deficient number, since it is larger than the sum of its proper divisors (516563).

11880397 is an equidigital number, since it uses as much as digits as its factorization.

11880397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516562.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 11880397 is about 3446.7951781329. The cubic root of 11880397 is about 228.1796893213.

The spelling of 11880397 in words is "eleven million, eight hundred eighty thousand, three hundred ninety-seven".