872408077 has 8 divisors (see below), whose sum is σ = 877622400. Its totient is φ = 867207264.

The previous prime is 872408071. The next prime is 872408081. The reversal of 872408077 is 770804278.

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-872408077 is a prime.

It is a super-2 number, since 2×872408077² = 1522191705629675858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872408071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144993 + ... + 150889.

It is an arithmetic number, because the mean of its divisors is an integer number (109702800).

Almost surely, 2^872408077 is an apocalyptic number.

It is an amenable number.

872408077 is a deficient number, since it is larger than the sum of its proper divisors (5214323).

872408077 is a wasteful number, since it uses less digits than its factorization.

872408077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6755.

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 872408077 is about 29536.5549277501. The cubic root of 872408077 is about 955.5202439393.

The spelling of 872408077 in words is "eight hundred seventy-two million, four hundred eight thousand, seventy-seven".