7662001 has 2 divisors, whose sum is σ = 7662002. Its totient is φ = 7662000.

The previous prime is 7661993. The next prime is 7662023. The reversal of 7662001 is 1002667.

It is an a-pointer prime, because the next prime (7662023) can be obtained adding 7662001 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4511376 + 3150625 = 2124^2 + 1775^2 .

It is a cyclic number.

It is not a de Polignac number, because 7662001 - 2³ = 7661993 is a prime.

It is not a weakly prime, because it can be changed into another prime (7662091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3831000 + 3831001.

It is an arithmetic number, because the mean of its divisors is an integer number (3831001).

Almost surely, 2^7662001 is an apocalyptic number.

It is an amenable number.

7662001 is a deficient number, since it is larger than the sum of its proper divisors (1).

7662001 is an equidigital number, since it uses as much as digits as its factorization.

7662001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7662001 is about 2768.0319723587. The cubic root of 7662001 is about 197.1427156909.

Adding to 7662001 its reverse (1002667), we get a palindrome (8664668).

The spelling of 7662001 in words is "seven million, six hundred sixty-two thousand, one".