3903624921 has 16 divisors (see below), whose sum is σ = 5986273664. Its totient is φ = 2216433024.

The previous prime is 3903624919. The next prime is 3903624937. The reversal of 3903624921 is 1294263093.

It is not a de Polignac number, because 3903624921 - 2¹ = 3903624919 is a prime.

It is a super-3 number, since 3×3903624921³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3903624921.

It is not an unprimeable number, because it can be changed into a prime (3903624961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588700 + ... + 595293.

It is an arithmetic number, because the mean of its divisors is an integer number (374142104).

Almost surely, 2^3903624921 is an apocalyptic number.

It is an amenable number.

3903624921 is a deficient number, since it is larger than the sum of its proper divisors (2082648743).

3903624921 is a wasteful number, since it uses less digits than its factorization.

3903624921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184160.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 3903624921 is about 62478.9958386016. The cubic root of 3903624921 is about 1574.5484448012.

The spelling of 3903624921 in words is "three billion, nine hundred three million, six hundred twenty-four thousand, nine hundred twenty-one".