49078621 has 4 divisors (see below), whose sum is σ = 49100544. Its totient is φ = 49056700.

The previous prime is 49078607. The next prime is 49078633. The reversal of 49078621 is 12687094.

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 49078621 - 2²¹ = 46981469 is a prime.

It is a super-2 number, since 2×49078621² = 4817422078523282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49078661) 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, 7165 + ... + 12226.

It is an arithmetic number, because the mean of its divisors is an integer number (12275136).

Almost surely, 2^49078621 is an apocalyptic number.

It is an amenable number.

49078621 is a deficient number, since it is larger than the sum of its proper divisors (21923).

49078621 is a wasteful number, since it uses less digits than its factorization.

49078621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21922.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 49078621 is about 7005.6135348733. The cubic root of 49078621 is about 366.1261795327.

The spelling of 49078621 in words is "forty-nine million, seventy-eight thousand, six hundred twenty-one".