68479546 has 4 divisors (see below), whose sum is σ = 102719322. Its totient is φ = 34239772.

The previous prime is 68479513. The next prime is 68479547. The reversal of 68479546 is 64597486.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50965321 + 17514225 = 7139^2 + 4185^2 .

It is a super-2 number, since 2×68479546² = 9378896440732232, 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 68479546.

It is not an unprimeable number, because it can be changed into a prime (68479547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17119885 + ... + 17119888.

Almost surely, 2^68479546 is an apocalyptic number.

68479546 is a deficient number, since it is larger than the sum of its proper divisors (34239776).

68479546 is a wasteful number, since it uses less digits than its factorization.

68479546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34239775.

The product of its digits is 1451520, while the sum is 49.

The square root of 68479546 is about 8275.2369150375. The cubic root of 68479546 is about 409.1227445872.

The spelling of 68479546 in words is "sixty-eight million, four hundred seventy-nine thousand, five hundred forty-six".