742770859 has 4 divisors (see below), whose sum is σ = 743804640. Its totient is φ = 741737080.

The previous prime is 742770841. The next prime is 742770869. The reversal of 742770859 is 958077247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 742770859 - 2²⁵ = 709216427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742770869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515812 + ... + 517249.

It is an arithmetic number, because the mean of its divisors is an integer number (185951160).

Almost surely, 2^742770859 is an apocalyptic number.

742770859 is a deficient number, since it is larger than the sum of its proper divisors (1033781).

742770859 is a wasteful number, since it uses less digits than its factorization.

742770859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033780.

The product of its (nonzero) digits is 987840, while the sum is 49.

The square root of 742770859 is about 27253.8228327697. The cubic root of 742770859 is about 905.6317065286.

The spelling of 742770859 in words is "seven hundred forty-two million, seven hundred seventy thousand, eight hundred fifty-nine".