609982901 has 6 divisors (see below), whose sum is σ = 670477206. Its totient is φ = 554529800.

The previous prime is 609982847. The next prime is 609982903. The reversal of 609982901 is 109289906.

It can be written as a sum of positive squares in only one way, i.e., 609843025 + 139876 = 24695^2 + 374^2 .

It is not a de Polignac number, because 609982901 - 2¹⁰ = 609981877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609982903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2520470 + ... + 2520711.

It is an arithmetic number, because the mean of its divisors is an integer number (111746201).

Almost surely, 2^609982901 is an apocalyptic number.

It is an amenable number.

609982901 is a deficient number, since it is larger than the sum of its proper divisors (60494305).

609982901 is a wasteful number, since it uses less digits than its factorization.

609982901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041203 (or 5041192 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 609982901 is about 24697.8319088944. The cubic root of 609982901 is about 848.0846844384.

The spelling of 609982901 in words is "six hundred nine million, nine hundred eighty-two thousand, nine hundred one".