747220077 has 12 divisors (see below), whose sum is σ = 1084971264. Its totient is φ = 495537480.

The previous prime is 747220013. The next prime is 747220079. The reversal of 747220077 is 770022747.

747220077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 747220077 - 2⁶ = 747220013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747220079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215623 + ... + 219060.

It is an arithmetic number, because the mean of its divisors is an integer number (90414272).

Almost surely, 2^747220077 is an apocalyptic number.

It is an amenable number.

747220077 is a deficient number, since it is larger than the sum of its proper divisors (337751187).

747220077 is a wasteful number, since it uses less digits than its factorization.

747220077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434880 (or 434877 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The square root of 747220077 is about 27335.3265391142. The cubic root of 747220077 is about 907.4363609951.

The spelling of 747220077 in words is "seven hundred forty-seven million, two hundred twenty thousand, seventy-seven".