7007428 has 12 divisors (see below), whose sum is σ = 12908560. Its totient is φ = 3319272.

The previous prime is 7007423. The next prime is 7007437. The reversal of 7007428 is 8247007.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7007396 and 7007405.

It is not an unprimeable number, because it can be changed into a prime (7007423) 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, 46026 + ... + 46177.

Almost surely, 2^7007428 is an apocalyptic number.

It is an amenable number.

7007428 is a deficient number, since it is larger than the sum of its proper divisors (5901132).

7007428 is a wasteful number, since it uses less digits than its factorization.

7007428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92226 (or 92224 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 7007428 is about 2647.1546989173. The cubic root of 7007428 is about 191.3607574666.

It can be divided in two parts, 700 and 7428, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 7007428 in words is "seven million, seven thousand, four hundred twenty-eight".