69047321 has 12 divisors (see below), whose sum is σ = 82281780. Its totient is φ = 57738240.

The previous prime is 69047299. The next prime is 69047333. The reversal of 69047321 is 12374096.

It can be written as a sum of positive squares in 2 ways, for example, as 37687321 + 31360000 = 6139^2 + 5600^2 .

It is not a de Polignac number, because 69047321 - 2⁶ = 69047257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69047221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15176 + ... + 19193.

It is an arithmetic number, because the mean of its divisors is an integer number (6856815).

Almost surely, 2^69047321 is an apocalyptic number.

It is an amenable number.

69047321 is a deficient number, since it is larger than the sum of its proper divisors (13234459).

69047321 is a wasteful number, since it uses less digits than its factorization.

69047321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34424 (or 34417 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 69047321 is about 8309.4717641978. The cubic root of 69047321 is about 410.2503349260.

The spelling of 69047321 in words is "sixty-nine million, forty-seven thousand, three hundred twenty-one".