49377621 has 4 divisors (see below), whose sum is σ = 65836832. Its totient is φ = 32918412.

The previous prime is 49377617. The next prime is 49377623. The reversal of 49377621 is 12677394.

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 not a de Polignac number, because 49377621 - 2² = 49377617 is a prime.

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 49377621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49377623) 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, 8229601 + ... + 8229606.

It is an arithmetic number, because the mean of its divisors is an integer number (16459208).

Almost surely, 2^49377621 is an apocalyptic number.

It is an amenable number.

49377621 is a deficient number, since it is larger than the sum of its proper divisors (16459211).

49377621 is a wasteful number, since it uses less digits than its factorization.

49377621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16459210.

The product of its digits is 63504, while the sum is 39.

The square root of 49377621 is about 7026.9211607930. The cubic root of 49377621 is about 366.8681873870.

The spelling of 49377621 in words is "forty-nine million, three hundred seventy-seven thousand, six hundred twenty-one".