747671408 has 40 divisors (see below), whose sum is σ = 1618865136. Its totient is φ = 331558400.

The previous prime is 747671399. The next prime is 747671429. The reversal of 747671408 is 804176747.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44591 + ... + 59022.

Almost surely, 2^747671408 is an apocalyptic number.

It is an amenable number.

747671408 is an abundant number, since it is smaller than the sum of its proper divisors (871193728).

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

747671408 is a wasteful number, since it uses less digits than its factorization.

747671408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103673 (or 103667 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 747671408 is about 27343.5807457619. The cubic root of 747671408 is about 907.6190254879.

The spelling of 747671408 in words is "seven hundred forty-seven million, six hundred seventy-one thousand, four hundred eight".