39247069 has 4 divisors (see below), whose sum is σ = 39264544. Its totient is φ = 39229596.

The previous prime is 39247051. The next prime is 39247093. The reversal of 39247069 is 96074293.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39247069 - 2⁷ = 39246941 is a prime.

It is a super-2 number, since 2×39247069² = 3080664850181522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39247009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4767 + ... + 10060.

It is an arithmetic number, because the mean of its divisors is an integer number (9816136).

Almost surely, 2^39247069 is an apocalyptic number.

It is an amenable number.

39247069 is a deficient number, since it is larger than the sum of its proper divisors (17475).

39247069 is a wasteful number, since it uses less digits than its factorization.

39247069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17474.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 39247069 is about 6264.7481194378. The cubic root of 39247069 is about 339.8357597753.

The spelling of 39247069 in words is "thirty-nine million, two hundred forty-seven thousand, sixty-nine".