7836428 has 12 divisors (see below), whose sum is σ = 14156352. Its totient is φ = 3791760.

The previous prime is 7836427. The next prime is 7836431. The reversal of 7836428 is 8246387.

It is a super-2 number, since 2×7836428² = 122819207598368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7836391 and 7836400.

It is not an unprimeable number, because it can be changed into a prime (7836427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31475 + ... + 31722.

It is an arithmetic number, because the mean of its divisors is an integer number (1179696).

Almost surely, 2^7836428 is an apocalyptic number.

It is an amenable number.

7836428 is a deficient number, since it is larger than the sum of its proper divisors (6319924).

7836428 is a wasteful number, since it uses less digits than its factorization.

7836428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63232 (or 63230 counting only the distinct ones).

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

The square root of 7836428 is about 2799.3620701867. The cubic root of 7836428 is about 198.6275028025.

The spelling of 7836428 in words is "seven million, eight hundred thirty-six thousand, four hundred twenty-eight".