7730038 has 4 divisors (see below), whose sum is σ = 11595060. Its totient is φ = 3865018.

The previous prime is 7730033. The next prime is 7730057. The reversal of 7730038 is 8300377.

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

It is a junction number, because it is equal to n+sod(n) for n = 7729988 and 7730015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7730033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932508 + ... + 1932511.

It is an arithmetic number, because the mean of its divisors is an integer number (2898765).

Almost surely, 2^7730038 is an apocalyptic number.

7730038 is a deficient number, since it is larger than the sum of its proper divisors (3865022).

7730038 is a wasteful number, since it uses less digits than its factorization.

7730038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865021.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 7730038 is about 2780.2945887082. The cubic root of 7730038 is about 197.7245259382.

The spelling of 7730038 in words is "seven million, seven hundred thirty thousand, thirty-eight".