49612321 has 8 divisors (see below), whose sum is σ = 54180000. Its totient is φ = 45054240.

The previous prime is 49612309. The next prime is 49612349. The reversal of 49612321 is 12321694.

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

It is not a de Polignac number, because 49612321 - 2⁵ = 49612289 is a prime.

It is a super-2 number, since 2×49612321² = 4922764790014082, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49612321.

It is not an unprimeable number, because it can be changed into a prime (49612351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12430 + ... + 15928.

It is an arithmetic number, because the mean of its divisors is an integer number (6772500).

Almost surely, 2^49612321 is an apocalyptic number.

It is an amenable number.

49612321 is a deficient number, since it is larger than the sum of its proper divisors (4567679).

49612321 is a wasteful number, since it uses less digits than its factorization.

49612321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799.

The product of its digits is 2592, while the sum is 28.

The square root of 49612321 is about 7043.6014225679. The cubic root of 49612321 is about 367.4485305925.

The spelling of 49612321 in words is "forty-nine million, six hundred twelve thousand, three hundred twenty-one".