745471623 has 16 divisors (see below), whose sum is σ = 1071415296. Its totient is φ = 458325600.

The previous prime is 745471619. The next prime is 745471627. The reversal of 745471623 is 326174547.

It is an interprime number because it is at equal distance from previous prime (745471619) and next prime (745471627).

It is not a de Polignac number, because 745471623 - 2² = 745471619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745471627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36586 + ... + 53192.

It is an arithmetic number, because the mean of its divisors is an integer number (66963456).

Almost surely, 2^745471623 is an apocalyptic number.

745471623 is a deficient number, since it is larger than the sum of its proper divisors (325943673).

745471623 is a wasteful number, since it uses less digits than its factorization.

745471623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17774.

The product of its digits is 141120, while the sum is 39.

The square root of 745471623 is about 27303.3262259381. The cubic root of 745471623 is about 906.7280244454.

The spelling of 745471623 in words is "seven hundred forty-five million, four hundred seventy-one thousand, six hundred twenty-three".