780622947 has 32 divisors (see below), whose sum is σ = 1248307200. Its totient is φ = 479277216.

The previous prime is 780622943. The next prime is 780622951. The reversal of 780622947 is 749226087.

It is an interprime number because it is at equal distance from previous prime (780622943) and next prime (780622951).

It is not a de Polignac number, because 780622947 - 2² = 780622943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (780622943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165808 + ... + 170450.

It is an arithmetic number, because the mean of its divisors is an integer number (39009600).

Almost surely, 2^780622947 is an apocalyptic number.

780622947 is a deficient number, since it is larger than the sum of its proper divisors (467684253).

780622947 is a wasteful number, since it uses less digits than its factorization.

780622947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144 (or 5138 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 780622947 is about 27939.6304019935. The cubic root of 780622947 is about 920.7613998521.

The spelling of 780622947 in words is "seven hundred eighty million, six hundred twenty-two thousand, nine hundred forty-seven".