11397777 has 8 divisors (see below), whose sum is σ = 15996960. Its totient is φ = 7198560.

The previous prime is 11397773. The next prime is 11397781. The reversal of 11397777 is 77779311.

It is an interprime number because it is at equal distance from previous prime (11397773) and next prime (11397781).

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

It is not a de Polignac number, because 11397777 - 2² = 11397773 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11397773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99924 + ... + 100037.

It is an arithmetic number, because the mean of its divisors is an integer number (1999620).

Almost surely, 2^11397777 is an apocalyptic number.

It is an amenable number.

11397777 is a deficient number, since it is larger than the sum of its proper divisors (4599183).

11397777 is a wasteful number, since it uses less digits than its factorization.

11397777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199983.

The product of its digits is 64827, while the sum is 42.

The square root of 11397777 is about 3376.0593892880. The cubic root of 11397777 is about 225.0470815055.

The spelling of 11397777 in words is "eleven million, three hundred ninety-seven thousand, seven hundred seventy-seven".