49309665 has 8 divisors (see below), whose sum is σ = 78895488. Its totient is φ = 26298480.

The previous prime is 49309661. The next prime is 49309669. The reversal of 49309665 is 56690394.

It is an interprime number because it is at equal distance from previous prime (49309661) and next prime (49309669).

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

It is not a de Polignac number, because 49309665 - 2² = 49309661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49309661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1643641 + ... + 1643670.

It is an arithmetic number, because the mean of its divisors is an integer number (9861936).

Almost surely, 2^49309665 is an apocalyptic number.

It is an amenable number.

49309665 is a deficient number, since it is larger than the sum of its proper divisors (29585823).

49309665 is a wasteful number, since it uses less digits than its factorization.

49309665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287319.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 49309665 is about 7022.0840923475. The cubic root of 49309665 is about 366.6998092172.

The spelling of 49309665 in words is "forty-nine million, three hundred nine thousand, six hundred sixty-five".