4072624921 has 4 divisors (see below), whose sum is σ = 4075160832. Its totient is φ = 4070089012.

The previous prime is 4072624903. The next prime is 4072624937. The reversal of 4072624921 is 1294262704.

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 4072624921 - 2⁷ = 4072624793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4072624991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265545 + ... + 1268758.

It is an arithmetic number, because the mean of its divisors is an integer number (1018790208).

Almost surely, 2^4072624921 is an apocalyptic number.

It is an amenable number.

4072624921 is a deficient number, since it is larger than the sum of its proper divisors (2535911).

4072624921 is a wasteful number, since it uses less digits than its factorization.

4072624921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535910.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 4072624921 is about 63817.1209081074. The cubic root of 4072624921 is about 1596.9505616929.

The spelling of 4072624921 in words is "four billion, seventy-two million, six hundred twenty-four thousand, nine hundred twenty-one".