913666072 has 64 divisors (see below), whose sum is σ = 1978214400. Its totient is φ = 391248000.

The previous prime is 913666051. The next prime is 913666073. The reversal of 913666072 is 270666319.

It is a super-2 number, since 2×913666072² = 1669571382247818368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913666073) 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, 317922 + ... + 320782.

It is an arithmetic number, because the mean of its divisors is an integer number (30909600).

Almost surely, 2^913666072 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 913666072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989107200).

913666072 is an abundant number, since it is smaller than the sum of its proper divisors (1064548328).

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

913666072 is a wasteful number, since it uses less digits than its factorization.

913666072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088 (or 3084 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 913666072 is about 30226.9097328854. The cubic root of 913666072 is about 970.3516888203.

The spelling of 913666072 in words is "nine hundred thirteen million, six hundred sixty-six thousand, seventy-two".