784679055 has 16 divisors (see below), whose sum is σ = 1276767360. Its totient is φ = 411401888.

The previous prime is 784678991. The next prime is 784679057. The reversal of 784679055 is 550976487.

784679055 = 2520² + 2521² + ... + 2637².

It is a cyclic number.

It is not a de Polignac number, because 784679055 - 2⁶ = 784678991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 784678989 and 784679007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (784679057) 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, 442437 + ... + 444206.

It is an arithmetic number, because the mean of its divisors is an integer number (79797960).

Almost surely, 2^784679055 is an apocalyptic number.

784679055 is a deficient number, since it is larger than the sum of its proper divisors (492088305).

784679055 is a wasteful number, since it uses less digits than its factorization.

784679055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886710.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The square root of 784679055 is about 28012.1233575750. The cubic root of 784679055 is about 922.3534009596.

The spelling of 784679055 in words is "seven hundred eighty-four million, six hundred seventy-nine thousand, fifty-five".