3722947 has 2 divisors, whose sum is σ = 3722948. Its totient is φ = 3722946.

The previous prime is 3722921. The next prime is 3722951. The reversal of 3722947 is 7492273.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3722947 - 2⁷ = 3722819 is a prime.

It is not a weakly prime, because it can be changed into another prime (3720947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1861473 + 1861474.

It is an arithmetic number, because the mean of its divisors is an integer number (1861474).

Almost surely, 2^3722947 is an apocalyptic number.

3722947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3722947 is an equidigital number, since it uses as much as digits as its factorization.

3722947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 34.

The square root of 3722947 is about 1929.4939751137. The cubic root of 3722947 is about 154.9871234534.

The spelling of 3722947 in words is "three million, seven hundred twenty-two thousand, nine hundred forty-seven".