39689245 has 8 divisors (see below), whose sum is σ = 47761920. Its totient is φ = 31661520.

The previous prime is 39689239. The next prime is 39689257. The reversal of 39689245 is 54298693.

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

It is not a de Polignac number, because 39689245 - 2¹³ = 39681053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39689195 and 39689204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9261 + ... + 12850.

It is an arithmetic number, because the mean of its divisors is an integer number (5970240).

Almost surely, 2^39689245 is an apocalyptic number.

It is an amenable number.

39689245 is a deficient number, since it is larger than the sum of its proper divisors (8072675).

39689245 is a wasteful number, since it uses less digits than its factorization.

39689245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22475.

The product of its digits is 466560, while the sum is 46.

The square root of 39689245 is about 6299.9400790801. The cubic root of 39689245 is about 341.1072466192.

The spelling of 39689245 in words is "thirty-nine million, six hundred eighty-nine thousand, two hundred forty-five".