738723961 has 4 divisors (see below), whose sum is σ = 755903632. Its totient is φ = 721544292.

The previous prime is 738723949. The next prime is 738723983. The reversal of 738723961 is 169327837.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 738723961 - 2⁵ = 738723929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (738793961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8589771 + ... + 8589856.

It is an arithmetic number, because the mean of its divisors is an integer number (188975908).

Almost surely, 2^738723961 is an apocalyptic number.

It is an amenable number.

738723961 is a deficient number, since it is larger than the sum of its proper divisors (17179671).

738723961 is a wasteful number, since it uses less digits than its factorization.

738723961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17179670.

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

The square root of 738723961 is about 27179.4768345529. The cubic root of 738723961 is about 903.9839684584.

The spelling of 738723961 in words is "seven hundred thirty-eight million, seven hundred twenty-three thousand, nine hundred sixty-one".