719493491 has 2 divisors, whose sum is σ = 719493492. Its totient is φ = 719493490.

The previous prime is 719493479. The next prime is 719493529. The reversal of 719493491 is 194394917.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 719493491 - 2⁶ = 719493427 is a prime.

It is not a weakly prime, because it can be changed into another prime (719493991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359746745 + 359746746.

It is an arithmetic number, because the mean of its divisors is an integer number (359746746).

Almost surely, 2^719493491 is an apocalyptic number.

719493491 is a deficient number, since it is larger than the sum of its proper divisors (1).

719493491 is an equidigital number, since it uses as much as digits as its factorization.

719493491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The square root of 719493491 is about 26823.3758315392. The cubic root of 719493491 is about 896.0707266894.

The spelling of 719493491 in words is "seven hundred nineteen million, four hundred ninety-three thousand, four hundred ninety-one".