7772742 has 24 divisors (see below), whose sum is σ = 17119440. Its totient is φ = 2548080.

The previous prime is 7772711. The next prime is 7772747. The reversal of 7772742 is 2472777.

It is a junction number, because it is equal to n+sod(n) for n = 7772697 and 7772706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7772747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2442 + ... + 4637.

It is an arithmetic number, because the mean of its divisors is an integer number (713310).

Almost surely, 2^7772742 is an apocalyptic number.

7772742 is an abundant number, since it is smaller than the sum of its proper divisors (9346698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7772742 is a wasteful number, since it uses less digits than its factorization.

7772742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148 (or 7145 counting only the distinct ones).

The product of its digits is 38416, while the sum is 36.

The square root of 7772742 is about 2787.9637730788. The cubic root of 7772742 is about 198.0879621411.

The spelling of 7772742 in words is "seven million, seven hundred seventy-two thousand, seven hundred forty-two".