771223061 has 8 divisors (see below), whose sum is σ = 895847424. Its totient is φ = 650211120.

The previous prime is 771223039. The next prime is 771223067. The reversal of 771223061 is 160322177.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-771223061 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 (771223067) 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, 902645 + ... + 903498.

It is an arithmetic number, because the mean of its divisors is an integer number (111980928).

Almost surely, 2^771223061 is an apocalyptic number.

It is an amenable number.

771223061 is a deficient number, since it is larger than the sum of its proper divisors (124624363).

771223061 is a wasteful number, since it uses less digits than its factorization.

771223061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806211.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 771223061 is about 27770.9031361963. The cubic root of 771223061 is about 917.0506768967.

The spelling of 771223061 in words is "seven hundred seventy-one million, two hundred twenty-three thousand, sixty-one".