3734497021 has 2 divisors, whose sum is σ = 3734497022. Its totient is φ = 3734497020.

The previous prime is 3734496977. The next prime is 3734497027. The reversal of 3734497021 is 1207944373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2561776996 + 1172720025 = 50614^2 + 34245^2 .

It is an emirp because it is prime and its reverse (1207944373) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3734497021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3734497027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1867248510 + 1867248511.

It is an arithmetic number, because the mean of its divisors is an integer number (1867248511).

Almost surely, 2^3734497021 is an apocalyptic number.

It is an amenable number.

3734497021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3734497021 is an equidigital number, since it uses as much as digits as its factorization.

3734497021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 3734497021 is about 61110.5311791675. The cubic root of 3734497021 is about 1551.4723465166.

The spelling of 3734497021 in words is "three billion, seven hundred thirty-four million, four hundred ninety-seven thousand, twenty-one".