678322053 has 32 divisors (see below), whose sum is σ = 1022112000. Its totient is φ = 444547008.

The previous prime is 678322009. The next prime is 678322079. The reversal of 678322053 is 350223876.

It is not a de Polignac number, because 678322053 - 2⁹ = 678321541 is a prime.

It is a super-2 number, since 2×678322053² = 920241615172269618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 678321999 and 678322017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678322153) 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, 413551 + ... + 415187.

It is an arithmetic number, because the mean of its divisors is an integer number (31941000).

Almost surely, 2^678322053 is an apocalyptic number.

It is an amenable number.

678322053 is a deficient number, since it is larger than the sum of its proper divisors (343789947).

678322053 is a wasteful number, since it uses less digits than its factorization.

678322053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898 (or 1892 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 678322053 is about 26044.6165838547. The cubic root of 678322053 is about 878.6420399439.

The spelling of 678322053 in words is "six hundred seventy-eight million, three hundred twenty-two thousand, fifty-three".