368739721 has 8 divisors (see below), whose sum is σ = 422918784. Its totient is φ = 314936160.

The previous prime is 368739677. The next prime is 368739731. The reversal of 368739721 is 127937863.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 368739721 - 2⁹ = 368739209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (368739731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91765 + ... + 95698.

It is an arithmetic number, because the mean of its divisors is an integer number (52864848).

Almost surely, 2^368739721 is an apocalyptic number.

It is an amenable number.

368739721 is a deficient number, since it is larger than the sum of its proper divisors (54179063).

368739721 is a wasteful number, since it uses less digits than its factorization.

368739721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187751.

The product of its digits is 381024, while the sum is 46.

The square root of 368739721 is about 19202.5967254432. The cubic root of 368739721 is about 717.0894078682.

The spelling of 368739721 in words is "three hundred sixty-eight million, seven hundred thirty-nine thousand, seven hundred twenty-one".