32315047 has 2 divisors, whose sum is σ = 32315048. Its totient is φ = 32315046.

The previous prime is 32315033. The next prime is 32315071. The reversal of 32315047 is 74051323.

It is a weak prime.

It is an emirp because it is prime and its reverse (74051323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32315047 - 2²³ = 23926439 is a prime.

It is a super-2 number, since 2×32315047² = 2088524525224418, which contains 22 as substring.

It is equal to p_1992022 and since 32315047 and 1992022 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32315027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16157523 + 16157524.

It is an arithmetic number, because the mean of its divisors is an integer number (16157524).

Almost surely, 2^32315047 is an apocalyptic number.

32315047 is a deficient number, since it is larger than the sum of its proper divisors (1).

32315047 is an equidigital number, since it uses as much as digits as its factorization.

32315047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 32315047 is about 5684.6325299002. The cubic root of 32315047 is about 318.5186971437.

The spelling of 32315047 in words is "thirty-two million, three hundred fifteen thousand, forty-seven".