867407772 has 96 divisors (see below), whose sum is σ = 2533224960. Its totient is φ = 224421120.

The previous prime is 867407759. The next prime is 867407819. The reversal of 867407772 is 277704768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254254 + ... + 257642.

It is an arithmetic number, because the mean of its divisors is an integer number (26387760).

Almost surely, 2^867407772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867407772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1266612480).

867407772 is an abundant number, since it is smaller than the sum of its proper divisors (1665817188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

867407772 is a wasteful number, since it uses less digits than its factorization.

867407772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691 (or 3689 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 48.

The square root of 867407772 is about 29451.7872462776. The cubic root of 867407772 is about 953.6911877515.

The spelling of 867407772 in words is "eight hundred sixty-seven million, four hundred seven thousand, seven hundred seventy-two".