2921291606 has 4 divisors (see below), whose sum is σ = 4381937412. Its totient is φ = 1460645802.

The previous prime is 2921291561. The next prime is 2921291609. The reversal of 2921291606 is 6061921292.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2921291606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921291609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730322900 + ... + 730322903.

It is an arithmetic number, because the mean of its divisors is an integer number (1095484353).

Almost surely, 2^2921291606 is an apocalyptic number.

2921291606 is a deficient number, since it is larger than the sum of its proper divisors (1460645806).

2921291606 is a wasteful number, since it uses less digits than its factorization.

2921291606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460645805.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 2921291606 is about 54048.9741438263. The cubic root of 2921291606 is about 1429.5246118953.

The spelling of 2921291606 in words is "two billion, nine hundred twenty-one million, two hundred ninety-one thousand, six hundred six".