991450714 has 4 divisors (see below), whose sum is σ = 1487176074. Its totient is φ = 495725356.

The previous prime is 991450703. The next prime is 991450739. The reversal of 991450714 is 417054199.

991450714 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 417054199 = 19 ⋅21950221.

It can be written as a sum of positive squares in only one way, i.e., 917060089 + 74390625 = 30283^2 + 8625^2 .

It is a super-2 number, since 2×991450714² = 1965949036582219592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247862677 + ... + 247862680.

Almost surely, 2^991450714 is an apocalyptic number.

991450714 is a deficient number, since it is larger than the sum of its proper divisors (495725360).

991450714 is a wasteful number, since it uses less digits than its factorization.

991450714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495725359.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 991450714 is about 31487.3103646533. The cubic root of 991450714 is about 997.1420780631.

The spelling of 991450714 in words is "nine hundred ninety-one million, four hundred fifty thousand, seven hundred fourteen".