745485785 has 16 divisors (see below), whose sum is σ = 1033316352. Its totient is φ = 510278400.

The previous prime is 745485781. The next prime is 745485817. The reversal of 745485785 is 587584547.

It is not a de Polignac number, because 745485785 - 2² = 745485781 is a prime.

It is a super-3 number, since 3×745485785³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745485781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397721 + ... + 399590.

It is an arithmetic number, because the mean of its divisors is an integer number (64582272).

Almost surely, 2^745485785 is an apocalyptic number.

It is an amenable number.

745485785 is a deficient number, since it is larger than the sum of its proper divisors (287830567).

745485785 is a wasteful number, since it uses less digits than its factorization.

745485785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797344.

The product of its digits is 6272000, while the sum is 53.

The square root of 745485785 is about 27303.5855703972. The cubic root of 745485785 is about 906.7337662248.

It can be divided in two parts, 7454 and 85785, that added together give a palindrome (93239).

The spelling of 745485785 in words is "seven hundred forty-five million, four hundred eighty-five thousand, seven hundred eighty-five".