745170077 has 4 divisors (see below), whose sum is σ = 777568800. Its totient is φ = 712771356.

The previous prime is 745170073. The next prime is 745170103. The reversal of 745170077 is 770071547.

745170077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 745170077 - 2² = 745170073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745170077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745170071) 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, 16199327 + ... + 16199372.

It is an arithmetic number, because the mean of its divisors is an integer number (194392200).

Almost surely, 2^745170077 is an apocalyptic number.

It is an amenable number.

745170077 is a deficient number, since it is larger than the sum of its proper divisors (32398723).

745170077 is a wasteful number, since it uses less digits than its factorization.

745170077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32398722.

The product of its (nonzero) digits is 48020, while the sum is 38.

The square root of 745170077 is about 27297.8035196973. The cubic root of 745170077 is about 906.6057496888.

The spelling of 745170077 in words is "seven hundred forty-five million, one hundred seventy thousand, seventy-seven".