2070396491 has 4 divisors (see below), whose sum is σ = 2071370184. Its totient is φ = 2069422800.

The previous prime is 2070396487. The next prime is 2070396563. The reversal of 2070396491 is 1946930702.

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

It is a cyclic number.

It is not a de Polignac number, because 2070396491 - 2² = 2070396487 is a prime.

It is a super-2 number, since 2×2070396491² = 8573083259890226162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2070396091) 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, 483650 + ... + 487911.

It is an arithmetic number, because the mean of its divisors is an integer number (517842546).

Almost surely, 2^2070396491 is an apocalyptic number.

2070396491 is a deficient number, since it is larger than the sum of its proper divisors (973693).

2070396491 is an equidigital number, since it uses as much as digits as its factorization.

2070396491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973692.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 2070396491 is about 45501.6097627326. The cubic root of 2070396491 is about 1274.5332631759.

The spelling of 2070396491 in words is "two billion, seventy million, three hundred ninety-six thousand, four hundred ninety-one".