68921046 has 12 divisors (see below), whose sum is σ = 149328972. Its totient is φ = 22973676.

The previous prime is 68921011. The next prime is 68921053. The reversal of 68921046 is 64012986.

It is a super-2 number, since 2×68921046² = 9500221163468232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68921046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1914456 + ... + 1914491.

It is an arithmetic number, because the mean of its divisors is an integer number (12444081).

Almost surely, 2^68921046 is an apocalyptic number.

68921046 is an abundant number, since it is smaller than the sum of its proper divisors (80407926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68921046 is a wasteful number, since it uses less digits than its factorization.

68921046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828955 (or 3828952 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 68921046 is about 8301.8700303004. The cubic root of 68921046 is about 410.0000912155. Note that the first 4 decimals are identical.

The spelling of 68921046 in words is "sixty-eight million, nine hundred twenty-one thousand, forty-six".