747666770 has 16 divisors (see below), whose sum is σ = 1382173848. Its totient is φ = 290983680.

The previous prime is 747666769. The next prime is 747666793. The reversal of 747666770 is 77666747.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 744907849 + 2758921 = 27293^2 + 1661^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009991 + ... + 1010730.

Almost surely, 2^747666770 is an apocalyptic number.

747666770 is a deficient number, since it is larger than the sum of its proper divisors (634507078).

747666770 is a wasteful number, since it uses less digits than its factorization.

747666770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020765.

The product of its (nonzero) digits is 2074464, while the sum is 50.

The square root of 747666770 is about 27343.4959359625. The cubic root of 747666770 is about 907.6171487518.

The spelling of 747666770 in words is "seven hundred forty-seven million, six hundred sixty-six thousand, seven hundred seventy".