743042686 has 4 divisors (see below), whose sum is σ = 1114564032. Its totient is φ = 371521342.

The previous prime is 743042569. The next prime is 743042701. The reversal of 743042686 is 686240347.

It is a happy number.

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

It is a super-2 number, since 2×743042686² = 1104224866436189192, which contains 22 as substring.

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, 185760670 + ... + 185760673.

It is an arithmetic number, because the mean of its divisors is an integer number (278641008).

Almost surely, 2^743042686 is an apocalyptic number.

743042686 is a deficient number, since it is larger than the sum of its proper divisors (371521346).

743042686 is a wasteful number, since it uses less digits than its factorization.

743042686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371521345.

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

The square root of 743042686 is about 27258.8093283621. The cubic root of 743042686 is about 905.7421690948.

The spelling of 743042686 in words is "seven hundred forty-three million, forty-two thousand, six hundred eighty-six".