68264947 has 4 divisors (see below), whose sum is σ = 69422040. Its totient is φ = 67107856.

The previous prime is 68264941. The next prime is 68264953. The reversal of 68264947 is 74946286.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (68264941) and next prime (68264953).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68264947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68264897 and 68264906.

It is not an unprimeable number, because it can be changed into a prime (68264941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578458 + ... + 578575.

It is an arithmetic number, because the mean of its divisors is an integer number (17355510).

Almost surely, 2^68264947 is an apocalyptic number.

68264947 is a deficient number, since it is larger than the sum of its proper divisors (1157093).

68264947 is a wasteful number, since it uses less digits than its factorization.

68264947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157092.

The product of its digits is 580608, while the sum is 46.

The square root of 68264947 is about 8262.2604049981. The cubic root of 68264947 is about 408.6949321519.

It can be divided in two parts, 682649 and 47, that added together give a triangular number (682696 = T₁₁₆₈).

The spelling of 68264947 in words is "sixty-eight million, two hundred sixty-four thousand, nine hundred forty-seven".