39380669 has 4 divisors (see below), whose sum is σ = 41092896. Its totient is φ = 37668444.

The previous prime is 39380651. The next prime is 39380681. The reversal of 39380669 is 96608393.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96608393 = 7 ⋅13801199.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39380669 is a prime.

It is a super-2 number, since 2×39380669² = 3101674181775122, 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 (39380629) 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, 856079 + ... + 856124.

It is an arithmetic number, because the mean of its divisors is an integer number (10273224).

Almost surely, 2^39380669 is an apocalyptic number.

It is an amenable number.

39380669 is a deficient number, since it is larger than the sum of its proper divisors (1712227).

39380669 is a wasteful number, since it uses less digits than its factorization.

39380669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712226.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 39380669 is about 6275.4018994802. The cubic root of 39380669 is about 340.2209319552.

The spelling of 39380669 in words is "thirty-nine million, three hundred eighty thousand, six hundred sixty-nine".