770055747 has 8 divisors (see below), whose sum is σ = 1027275600. Its totient is φ = 513103200.

The previous prime is 770055721. The next prime is 770055791. The reversal of 770055747 is 747550077.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 770055747 - 2⁷ = 770055619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 770055699 and 770055708.

It is not an unprimeable number, because it can be changed into a prime (770055547) 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, 60004 + ... + 71697.

It is an arithmetic number, because the mean of its divisors is an integer number (128409450).

Almost surely, 2^770055747 is an apocalyptic number.

770055747 is a deficient number, since it is larger than the sum of its proper divisors (257219853).

770055747 is a wasteful number, since it uses less digits than its factorization.

770055747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133653.

The product of its (nonzero) digits is 240100, while the sum is 42.

The square root of 770055747 is about 27749.8783240576. The cubic root of 770055747 is about 916.5877642867.

The spelling of 770055747 in words is "seven hundred seventy million, fifty-five thousand, seven hundred forty-seven".