683406742 has 4 divisors (see below), whose sum is σ = 1025110116. Its totient is φ = 341703370.

The previous prime is 683406733. The next prime is 683406769. The reversal of 683406742 is 247604386.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×683406742² = 934089550022109128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 683406695 and 683406704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170851684 + ... + 170851687.

It is an arithmetic number, because the mean of its divisors is an integer number (256277529).

Almost surely, 2^683406742 is an apocalyptic number.

683406742 is a deficient number, since it is larger than the sum of its proper divisors (341703374).

683406742 is a wasteful number, since it uses less digits than its factorization.

683406742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341703373.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 683406742 is about 26142.0493075811. The cubic root of 683406742 is about 880.8320049634.

The spelling of 683406742 in words is "six hundred eighty-three million, four hundred six thousand, seven hundred forty-two".