872340077 has 24 divisors (see below), whose sum is σ = 1026312768. Its totient is φ = 726261120.

The previous prime is 872340061. The next prime is 872340107. The reversal of 872340077 is 770043278.

It is not a de Polignac number, because 872340077 - 2⁴ = 872340061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 872340077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872340037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2786873 + ... + 2787185.

It is an arithmetic number, because the mean of its divisors is an integer number (42763032).

Almost surely, 2^872340077 is an apocalyptic number.

It is an amenable number.

872340077 is a deficient number, since it is larger than the sum of its proper divisors (153972691).

872340077 is a wasteful number, since it uses less digits than its factorization.

872340077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 872340077 is about 29535.4037893508. The cubic root of 872340077 is about 955.4954172301.

The spelling of 872340077 in words is "eight hundred seventy-two million, three hundred forty thousand, seventy-seven".