20461699 has 2 divisors, whose sum is σ = 20461700. Its totient is φ = 20461698.

The previous prime is 20461673. The next prime is 20461709. The reversal of 20461699 is 99616402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20461699 - 2¹¹ = 20459651 is a prime.

It is a super-2 number, since 2×20461699² = 837362251933202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20461619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230849 + 10230850.

It is an arithmetic number, because the mean of its divisors is an integer number (10230850).

Almost surely, 2^20461699 is an apocalyptic number.

20461699 is a deficient number, since it is larger than the sum of its proper divisors (1).

20461699 is an equidigital number, since it uses as much as digits as its factorization.

20461699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 20461699 is about 4523.4609537389. The cubic root of 20461699 is about 273.5146316871.

The spelling of 20461699 in words is "twenty million, four hundred sixty-one thousand, six hundred ninety-nine".