1980214727 has 4 divisors (see below), whose sum is σ = 1981108536. Its totient is φ = 1979320920.

The previous prime is 1980214661. The next prime is 1980214741. The reversal of 1980214727 is 7274120891.

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 1980214727 - 2¹⁴ = 1980198343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980214127) 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, 443573 + ... + 448014.

It is an arithmetic number, because the mean of its divisors is an integer number (495277134).

Almost surely, 2^1980214727 is an apocalyptic number.

1980214727 is a deficient number, since it is larger than the sum of its proper divisors (893809).

1980214727 is an equidigital number, since it uses as much as digits as its factorization.

1980214727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893808.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 1980214727 is about 44499.6036723924. The cubic root of 1980214727 is about 1255.7526269740.

The spelling of 1980214727 in words is "one billion, nine hundred eighty million, two hundred fourteen thousand, seven hundred twenty-seven".