69722947 has 8 divisors (see below), whose sum is σ = 80873216. Its totient is φ = 58870152.

The previous prime is 69722903. The next prime is 69722969. The reversal of 69722947 is 74922796.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69722947 is a prime.

It is a super-2 number, since 2×69722947² = 9722578676729618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69722897 and 69722906.

It is not an unprimeable number, because it can be changed into a prime (69720947) 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 7 ways as a sum of consecutive naturals, for example, 73863 + ... + 74800.

It is an arithmetic number, because the mean of its divisors is an integer number (10109152).

Almost surely, 2^69722947 is an apocalyptic number.

69722947 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

69722947 is a deficient number, since it is larger than the sum of its proper divisors (11150269).

69722947 is a wasteful number, since it uses less digits than its factorization.

69722947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148737.

The product of its digits is 381024, while the sum is 46.

The square root of 69722947 is about 8350.0267664242. The cubic root of 69722947 is about 411.5840898984.

The spelling of 69722947 in words is "sixty-nine million, seven hundred twenty-two thousand, nine hundred forty-seven".