691047082 has 16 divisors (see below), whose sum is σ = 1133505504. Its totient is φ = 313362000.

The previous prime is 691047067. The next prime is 691047083. The reversal of 691047082 is 280740196.

It is not an unprimeable number, because it can be changed into a prime (691047083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28044 + ... + 46567.

It is an arithmetic number, because the mean of its divisors is an integer number (70844094).

Almost surely, 2^691047082 is an apocalyptic number.

691047082 is a deficient number, since it is larger than the sum of its proper divisors (442458422).

691047082 is a wasteful number, since it uses less digits than its factorization.

691047082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75045.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 691047082 is about 26287.7743827811. The cubic root of 691047082 is about 884.1023517711.

The spelling of 691047082 in words is "six hundred ninety-one million, forty-seven thousand, eighty-two".