745972961 has 8 divisors (see below), whose sum is σ = 779372160. Its totient is φ = 712654272.

The previous prime is 745972951. The next prime is 745972963. The reversal of 745972961 is 169279547.

745972961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 745972961 - 2¹⁸ = 745710817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745972963) 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, 776 + ... + 38633.

It is an arithmetic number, because the mean of its divisors is an integer number (97421520).

Almost surely, 2^745972961 is an apocalyptic number.

It is an amenable number.

745972961 is a deficient number, since it is larger than the sum of its proper divisors (33399199).

745972961 is a wasteful number, since it uses less digits than its factorization.

745972961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40255.

The product of its digits is 952560, while the sum is 50.

The square root of 745972961 is about 27312.5055789468. The cubic root of 745972961 is about 906.9312404747.

The spelling of 745972961 in words is "seven hundred forty-five million, nine hundred seventy-two thousand, nine hundred sixty-one".