739849221 has 24 divisors (see below), whose sum is σ = 1109792320. Its totient is φ = 492547392.

The previous prime is 739849217. The next prime is 739849249. The reversal of 739849221 is 122948937.

739849221 is a `hidden beast` number, since 73 + 98 + 492 + 2 + 1 = 666.

It is not a de Polignac number, because 739849221 - 2² = 739849217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (739849291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221661 + ... + 224973.

Almost surely, 2^739849221 is an apocalyptic number.

It is an amenable number.

739849221 is a deficient number, since it is larger than the sum of its proper divisors (369943099).

739849221 is an equidigital number, since it uses as much as digits as its factorization.

739849221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247 (or 4235 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 739849221 is about 27200.1695031483. The cubic root of 739849221 is about 904.4427329402.

The spelling of 739849221 in words is "seven hundred thirty-nine million, eight hundred forty-nine thousand, two hundred twenty-one".