20377099 has 2 divisors, whose sum is σ = 20377100. Its totient is φ = 20377098.

The previous prime is 20377087. The next prime is 20377117. The reversal of 20377099 is 99077302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20377099 is a prime.

It is not a weakly prime, because it can be changed into another prime (20377499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10188549 + 10188550.

It is an arithmetic number, because the mean of its divisors is an integer number (10188550).

Almost surely, 2^20377099 is an apocalyptic number.

20377099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20377099 is an equidigital number, since it uses as much as digits as its factorization.

20377099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 20377099 is about 4514.1000210452. The cubic root of 20377099 is about 273.1371573047.

The spelling of 20377099 in words is "twenty million, three hundred seventy-seven thousand, ninety-nine".