3397672656 has 240 divisors, whose sum is σ = 11369938944. Its totient is φ = 962140032.

The previous prime is 3397672609. The next prime is 3397672657. The reversal of 3397672656 is 6562767933.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3397672657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3455941 + ... + 3456923.

Almost surely, 2^3397672656 is an apocalyptic number.

3397672656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3397672656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5684969472).

3397672656 is an abundant number, since it is smaller than the sum of its proper divisors (7972266288).

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

3397672656 is a wasteful number, since it uses less digits than its factorization.

3397672656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1122 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 54.

The square root of 3397672656 is about 58289.5587219529. The cubic root of 3397672656 is about 1503.3514184196.

The spelling of 3397672656 in words is "three billion, three hundred ninety-seven million, six hundred seventy-two thousand, six hundred fifty-six".