1417921387 has 2 divisors, whose sum is σ = 1417921388. Its totient is φ = 1417921386.

The previous prime is 1417921357. The next prime is 1417921391. The reversal of 1417921387 is 7831297141.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1417921387 - 2²³ = 1409532779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1417921357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 708960693 + 708960694.

It is an arithmetic number, because the mean of its divisors is an integer number (708960694).

Almost surely, 2^1417921387 is an apocalyptic number.

1417921387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1417921387 is an equidigital number, since it uses as much as digits as its factorization.

1417921387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 43.

The square root of 1417921387 is about 37655.2969315075. The cubic root of 1417921387 is about 1123.4421596988.

The spelling of 1417921387 in words is "one billion, four hundred seventeen million, nine hundred twenty-one thousand, three hundred eighty-seven".