745591471 has 4 divisors (see below), whose sum is σ = 757814344. Its totient is φ = 733368600.

The previous prime is 745591463. The next prime is 745591481. The reversal of 745591471 is 174195547.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 745591471 - 2³ = 745591463 is a prime.

It is a super-3 number, since 3×745591471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745591481) 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, 6111345 + ... + 6111466.

It is an arithmetic number, because the mean of its divisors is an integer number (189453586).

Almost surely, 2^745591471 is an apocalyptic number.

745591471 is a deficient number, since it is larger than the sum of its proper divisors (12222873).

745591471 is a wasteful number, since it uses less digits than its factorization.

745591471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12222872.

The product of its digits is 176400, while the sum is 43.

The square root of 745591471 is about 27305.5208886408. The cubic root of 745591471 is about 906.7766127993.

The spelling of 745591471 in words is "seven hundred forty-five million, five hundred ninety-one thousand, four hundred seventy-one".