782007742 has 4 divisors (see below), whose sum is σ = 1173011616. Its totient is φ = 391003870.

The previous prime is 782007731. The next prime is 782007763. The reversal of 782007742 is 247700287.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247700287 = 6197 ⋅39971.

It is a super-2 number, since 2×782007742² = 1223072217095877128, 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, 195501934 + ... + 195501937.

It is an arithmetic number, because the mean of its divisors is an integer number (293252904).

Almost surely, 2^782007742 is an apocalyptic number.

782007742 is a deficient number, since it is larger than the sum of its proper divisors (391003874).

782007742 is a wasteful number, since it uses less digits than its factorization.

782007742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391003873.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 782007742 is about 27964.4013345539. The cubic root of 782007742 is about 921.3055432858.

The spelling of 782007742 in words is "seven hundred eighty-two million, seven thousand, seven hundred forty-two".