742777 has 8 divisors (see below), whose sum is σ = 878400. Its totient is φ = 614544.

The previous prime is 742759. The next prime is 742783. The reversal of 742777 is 777247.

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

It is not a de Polignac number, because 742777 - 2¹⁵ = 710009 is a prime.

It is a Duffinian number.

742777 is a modest number, since divided by 777 gives 742 as remainder.

It is not an unprimeable number, because it can be changed into a prime (742717) 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, 1627 + ... + 2032.

It is an arithmetic number, because the mean of its divisors is an integer number (109800).

2⁷⁴²⁷⁷⁷ is an apocalyptic number.

It is an amenable number.

742777 is a deficient number, since it is larger than the sum of its proper divisors (135623).

742777 is a wasteful number, since it uses less digits than its factorization.

742777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695.

The product of its digits is 19208, while the sum is 34.

The square root of 742777 is about 861.8451136950. The cubic root of 742777 is about 90.5634202349.

The spelling of 742777 in words is "seven hundred forty-two thousand, seven hundred seventy-seven", and thus it is an iban number.