780097773 has 16 divisors (see below), whose sum is σ = 1280160896. Its totient is φ = 411480000.

The previous prime is 780097757. The next prime is 780097777. The reversal of 780097773 is 377790087.

It is not a de Polignac number, because 780097773 - 2⁴ = 780097757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780097777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1428478 + ... + 1429023.

It is an arithmetic number, because the mean of its divisors is an integer number (80010056).

Almost surely, 2^780097773 is an apocalyptic number.

It is an amenable number.

780097773 is a deficient number, since it is larger than the sum of its proper divisors (500063123).

780097773 is a wasteful number, since it uses less digits than its factorization.

780097773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857524.

The product of its (nonzero) digits is 518616, while the sum is 48.

The square root of 780097773 is about 27930.2304501771. The cubic root of 780097773 is about 920.5548688885.

The spelling of 780097773 in words is "seven hundred eighty million, ninety-seven thousand, seven hundred seventy-three".