2621673097 has 4 divisors (see below), whose sum is σ = 2621790720. Its totient is φ = 2621555476.

The previous prime is 2621673091. The next prime is 2621673107. The reversal of 2621673097 is 7903761262.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2621673097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2621673091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13993 + ... + 73750.

It is an arithmetic number, because the mean of its divisors is an integer number (655447680).

Almost surely, 2^2621673097 is an apocalyptic number.

It is an amenable number.

2621673097 is a deficient number, since it is larger than the sum of its proper divisors (117623).

2621673097 is an equidigital number, since it uses as much as digits as its factorization.

2621673097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117622.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 2621673097 is about 51202.2762872902. The cubic root of 2621673097 is about 1378.8790689201.

The spelling of 2621673097 in words is "two billion, six hundred twenty-one million, six hundred seventy-three thousand, ninety-seven".