7421002 has 4 divisors (see below), whose sum is σ = 11131506. Its totient is φ = 3710500.

The previous prime is 7420969. The next prime is 7421003. The reversal of 7421002 is 2001247.

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

It can be written as a sum of positive squares in only one way, i.e., 7403841 + 17161 = 2721^2 + 131^2 .

It is not an unprimeable number, because it can be changed into a prime (7421003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1855249 + ... + 1855252.

Almost surely, 2^7421002 is an apocalyptic number.

7421002 is a deficient number, since it is larger than the sum of its proper divisors (3710504).

7421002 is a wasteful number, since it uses less digits than its factorization.

7421002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710503.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 7421002 is about 2724.1516110525. The cubic root of 7421002 is about 195.0536954913.

Adding to 7421002 its reverse (2001247), we get a palindrome (9422249).

The spelling of 7421002 in words is "seven million, four hundred twenty-one thousand, two".