49416721 has 4 divisors (see below), whose sum is σ = 50154352. Its totient is φ = 48679092.

The previous prime is 49416677. The next prime is 49416727. The reversal of 49416721 is 12761494.

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 49416721 - 2⁹ = 49416209 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49416727) 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, 368715 + ... + 368848.

It is an arithmetic number, because the mean of its divisors is an integer number (12538588).

Almost surely, 2^49416721 is an apocalyptic number.

It is an amenable number.

49416721 is a deficient number, since it is larger than the sum of its proper divisors (737631).

49416721 is an equidigital number, since it uses as much as digits as its factorization.

49416721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737630.

The product of its digits is 12096, while the sum is 34.

The square root of 49416721 is about 7029.7027675429. The cubic root of 49416721 is about 366.9649975156.

The spelling of 49416721 in words is "forty-nine million, four hundred sixteen thousand, seven hundred twenty-one".