1201846979 has 2 divisors, whose sum is σ = 1201846980. Its totient is φ = 1201846978.

The previous prime is 1201846973. The next prime is 1201846993. The reversal of 1201846979 is 9796481021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201846979 - 2²⁴ = 1185069763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201846973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600923489 + 600923490.

It is an arithmetic number, because the mean of its divisors is an integer number (600923490).

Almost surely, 2^1201846979 is an apocalyptic number.

1201846979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201846979 is an equidigital number, since it uses as much as digits as its factorization.

1201846979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 1201846979 is about 34667.6647468502. The cubic root of 1201846979 is about 1063.2034863923.

The spelling of 1201846979 in words is "one billion, two hundred one million, eight hundred forty-six thousand, nine hundred seventy-nine".