7428836 has 6 divisors (see below), whose sum is σ = 13000470. Its totient is φ = 3714416.

The previous prime is 7428833. The next prime is 7428859. The reversal of 7428836 is 6388247.

It can be written as a sum of positive squares in only one way, i.e., 3841600 + 3587236 = 1960^2 + 1894^2 .

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 7428836.

It is not an unprimeable number, because it can be changed into a prime (7428833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 928601 + ... + 928608.

It is an arithmetic number, because the mean of its divisors is an integer number (2166745).

Almost surely, 2^7428836 is an apocalyptic number.

It is an amenable number.

7428836 is a deficient number, since it is larger than the sum of its proper divisors (5571634).

7428836 is a wasteful number, since it uses less digits than its factorization.

7428836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857213 (or 1857211 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 7428836 is about 2725.5891106328. The cubic root of 7428836 is about 195.1223076665.

The spelling of 7428836 in words is "seven million, four hundred twenty-eight thousand, eight hundred thirty-six".