7641994 has 4 divisors (see below), whose sum is σ = 11462994. Its totient is φ = 3820996.

The previous prime is 7641989. The next prime is 7642007. The reversal of 7641994 is 4991467.

It is a happy number.

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., 5938969 + 1703025 = 2437^2 + 1305^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1910497 + ... + 1910500.

Almost surely, 2^7641994 is an apocalyptic number.

7641994 is a deficient number, since it is larger than the sum of its proper divisors (3821000).

7641994 is a wasteful number, since it uses less digits than its factorization.

7641994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820999.

The product of its digits is 54432, while the sum is 40.

The square root of 7641994 is about 2764.4156706255. The cubic root of 7641994 is about 196.9709732457.

The spelling of 7641994 in words is "seven million, six hundred forty-one thousand, nine hundred ninety-four".