1429487791 has 2 divisors, whose sum is σ = 1429487792. Its totient is φ = 1429487790.

The previous prime is 1429487777. The next prime is 1429487797. The reversal of 1429487791 is 1977849241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1429487791 - 2¹³ = 1429479599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1429487797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714743895 + 714743896.

It is an arithmetic number, because the mean of its divisors is an integer number (714743896).

Almost surely, 2^1429487791 is an apocalyptic number.

1429487791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429487791 is an equidigital number, since it uses as much as digits as its factorization.

1429487791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 52.

The square root of 1429487791 is about 37808.5676930507. The cubic root of 1429487791 is about 1126.4886409287.

The spelling of 1429487791 in words is "one billion, four hundred twenty-nine million, four hundred eighty-seven thousand, seven hundred ninety-one".