1157797 has 8 divisors (see below), whose sum is σ = 1226880. Its totient is φ = 1090320.

The previous prime is 1157791. The next prime is 1157831. The reversal of 1157797 is 7977511.

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

It is a cyclic number.

It is not a de Polignac number, because 1157797 - 2⁷ = 1157669 is a prime.

1157797 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1279 + ... + 1987.

It is an arithmetic number, because the mean of its divisors is an integer number (153360).

2^1157797 is an apocalyptic number.

It is an amenable number.

1157797 is a deficient number, since it is larger than the sum of its proper divisors (69083).

1157797 is an equidigital number, since it uses as much as digits as its factorization.

1157797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803.

The product of its digits is 15435, while the sum is 37.

The square root of 1157797 is about 1076.0097583201. The cubic root of 1157797 is about 105.0052000448.

The spelling of 1157797 in words is "one million, one hundred fifty-seven thousand, seven hundred ninety-seven".