745667688 has 32 divisors (see below), whose sum is σ = 1870068960. Its totient is φ = 247769280.

The previous prime is 745667683. The next prime is 745667693. The reversal of 745667688 is 886766547.

It is an interprime number because it is at equal distance from previous prime (745667683) and next prime (745667693).

It is not an unprimeable number, because it can be changed into a prime (745667683) 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, 41398 + ... + 56613.

It is an arithmetic number, because the mean of its divisors is an integer number (58439655).

Almost surely, 2^745667688 is an apocalyptic number.

It is an amenable number.

745667688 is an abundant number, since it is smaller than the sum of its proper divisors (1124401272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745667688 is a wasteful number, since it uses less digits than its factorization.

745667688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98337 (or 98333 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The square root of 745667688 is about 27306.9164864874. The cubic root of 745667688 is about 906.8075097185.

The spelling of 745667688 in words is "seven hundred forty-five million, six hundred sixty-seven thousand, six hundred eighty-eight".