742827861 has 16 divisors (see below), whose sum is σ = 1116913600. Its totient is φ = 487826064.

The previous prime is 742827851. The next prime is 742827887. The reversal of 742827861 is 168728247.

742827861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 742827861 - 2⁵ = 742827829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742827851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203506 + ... + 207123.

It is an arithmetic number, because the mean of its divisors is an integer number (69807100).

Almost surely, 2^742827861 is an apocalyptic number.

It is an amenable number.

742827861 is a deficient number, since it is larger than the sum of its proper divisors (374085739).

742827861 is a wasteful number, since it uses less digits than its factorization.

742827861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410705 (or 410699 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 742827861 is about 27254.8685742566. The cubic root of 742827861 is about 905.6548727120.

The spelling of 742827861 in words is "seven hundred forty-two million, eight hundred twenty-seven thousand, eight hundred sixty-one".