770491 has 8 divisors (see below), whose sum is σ = 830304. Its totient is φ = 712320.

The previous prime is 770459. The next prime is 770503. The reversal of 770491 is 194077.

770491 = 81² + 82² + ... + 141².

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 770491 - 2⁵ = 770459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770401) 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, 666 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (103788).

2⁷⁷⁰⁴⁹¹ is an apocalyptic number.

770491 is a deficient number, since it is larger than the sum of its proper divisors (59813).

770491 is a wasteful number, since it uses less digits than its factorization.

770491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 770491 is about 877.7761673684. The cubic root of 770491 is about 91.6760423835.

The spelling of 770491 in words is "seven hundred seventy thousand, four hundred ninety-one".