745561907 has 8 divisors (see below), whose sum is σ = 763489584. Its totient is φ = 727661088.

The previous prime is 745561903. The next prime is 745561939. The reversal of 745561907 is 709165547.

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 745561907 - 2² = 745561903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745561903) 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, 56513 + ... + 68445.

It is an arithmetic number, because the mean of its divisors is an integer number (95436198).

Almost surely, 2^745561907 is an apocalyptic number.

745561907 is a deficient number, since it is larger than the sum of its proper divisors (17927677).

745561907 is a wasteful number, since it uses less digits than its factorization.

745561907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13429.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 745561907 is about 27304.9795275514. The cubic root of 745561907 is about 906.7646275504.

The spelling of 745561907 in words is "seven hundred forty-five million, five hundred sixty-one thousand, nine hundred seven".