747332728 has 8 divisors (see below), whose sum is σ = 1401248880. Its totient is φ = 373666360.

The previous prime is 747332713. The next prime is 747332737. The reversal of 747332728 is 827233747.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46708288 + ... + 46708303.

It is an arithmetic number, because the mean of its divisors is an integer number (175156110).

Almost surely, 2^747332728 is an apocalyptic number.

It is an amenable number.

747332728 is a deficient number, since it is larger than the sum of its proper divisors (653916152).

747332728 is a wasteful number, since it uses less digits than its factorization.

747332728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93416597 (or 93416593 counting only the distinct ones).

The product of its digits is 395136, while the sum is 43.

The square root of 747332728 is about 27337.3870002237. The cubic root of 747332728 is about 907.4819604466.

The spelling of 747332728 in words is "seven hundred forty-seven million, three hundred thirty-two thousand, seven hundred twenty-eight".