7072649 has 2 divisors, whose sum is σ = 7072650. Its totient is φ = 7072648.

The previous prime is 7072631. The next prime is 7072657. The reversal of 7072649 is 9462707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6250000 + 822649 = 2500^2 + 907^2 .

It is an emirp because it is prime and its reverse (9462707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7072649 - 2¹⁶ = 7007113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7072669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3536324 + 3536325.

It is an arithmetic number, because the mean of its divisors is an integer number (3536325).

Almost surely, 2^7072649 is an apocalyptic number.

It is an amenable number.

7072649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7072649 is an equidigital number, since it uses as much as digits as its factorization.

7072649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 7072649 is about 2659.4452429031. The cubic root of 7072649 is about 191.9526159835.

The spelling of 7072649 in words is "seven million, seventy-two thousand, six hundred forty-nine".