719947 has 2 divisors, whose sum is σ = 719948. Its totient is φ = 719946.

The previous prime is 719941. The next prime is 719951. The reversal of 719947 is 749917.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 719947 - 2¹⁵ = 687179 is a prime.

It is not a weakly prime, because it can be changed into another prime (719941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359973 + 359974.

It is an arithmetic number, because the mean of its divisors is an integer number (359974).

2⁷¹⁹⁹⁴⁷ is an apocalyptic number.

719947 is a deficient number, since it is larger than the sum of its proper divisors (1).

719947 is an equidigital number, since it uses as much as digits as its factorization.

719947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 37.

The square root of 719947 is about 848.4969062996. The cubic root of 719947 is about 89.6258956693.

The spelling of 719947 in words is "seven hundred nineteen thousand, nine hundred forty-seven".