691292342 has 16 divisors (see below), whose sum is σ = 1118033280. Its totient is φ = 318677952.

The previous prime is 691292341. The next prime is 691292351. The reversal of 691292342 is 243292196.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 691292296 and 691292305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (691292341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7034 + ... + 37842.

It is an arithmetic number, because the mean of its divisors is an integer number (69877080).

Almost surely, 2^691292342 is an apocalyptic number.

691292342 is a deficient number, since it is larger than the sum of its proper divisors (426740938).

691292342 is a wasteful number, since it uses less digits than its factorization.

691292342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31687.

The product of its digits is 46656, while the sum is 38.

The square root of 691292342 is about 26292.4388750835. The cubic root of 691292342 is about 884.2069318598.

The spelling of 691292342 in words is "six hundred ninety-one million, two hundred ninety-two thousand, three hundred forty-two".