726970776 has 64 divisors (see below), whose sum is σ = 2090887680. Its totient is φ = 206323200.

The previous prime is 726970747. The next prime is 726970793. The reversal of 726970776 is 677079627.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11040 + ... + 39696.

It is an arithmetic number, because the mean of its divisors is an integer number (32670120).

Almost surely, 2^726970776 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 726970776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045443840).

726970776 is an abundant number, since it is smaller than the sum of its proper divisors (1363916904).

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

726970776 is a wasteful number, since it uses less digits than its factorization.

726970776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28824 (or 28820 counting only the distinct ones).

The product of its (nonzero) digits is 1555848, while the sum is 51.

The square root of 726970776 is about 26962.3955908966. The cubic root of 726970776 is about 899.1641523673.

The spelling of 726970776 in words is "seven hundred twenty-six million, nine hundred seventy thousand, seven hundred seventy-six".