745406765 has 16 divisors (see below), whose sum is σ = 950901120. Its totient is φ = 559339200.

The previous prime is 745406741. The next prime is 745406771. The reversal of 745406765 is 567604547.

It is not a de Polignac number, because 745406765 - 2¹⁰ = 745405741 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29249 + ... + 48438.

It is an arithmetic number, because the mean of its divisors is an integer number (59431320).

Almost surely, 2^745406765 is an apocalyptic number.

It is an amenable number.

745406765 is a deficient number, since it is larger than the sum of its proper divisors (205494355).

745406765 is a wasteful number, since it uses less digits than its factorization.

745406765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77812.

The product of its (nonzero) digits is 705600, while the sum is 44.

The square root of 745406765 is about 27302.1384693580. The cubic root of 745406765 is about 906.7017277718.

The spelling of 745406765 in words is "seven hundred forty-five million, four hundred six thousand, seven hundred sixty-five".