612981903 has 16 divisors (see below), whose sum is σ = 895229280. Its totient is φ = 371352576.

The previous prime is 612981829. The next prime is 612981907. The reversal of 612981903 is 309189216.

It is not a de Polignac number, because 612981903 - 2⁸ = 612981647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612981907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205750 + ... + 208707.

It is an arithmetic number, because the mean of its divisors is an integer number (55951830).

Almost surely, 2^612981903 is an apocalyptic number.

612981903 is a deficient number, since it is larger than the sum of its proper divisors (282247377).

612981903 is a wasteful number, since it uses less digits than its factorization.

612981903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414506.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 612981903 is about 24758.4713381097. The cubic root of 612981903 is about 849.4722920572.

The spelling of 612981903 in words is "six hundred twelve million, nine hundred eighty-one thousand, nine hundred three".