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74083021 is a prime number
BaseRepresentation
bin1000110101001…
…10101011001101
312011101210210121
410122212223031
5122431124041
611203504541
71556460325
oct432465315
9164353717
1074083021
11388aa741
1220988151
131246b10c
149ba6285
1567857d1
hex46a6acd

74083021 has 2 divisors, whose sum is σ = 74083022. Its totient is φ = 74083020.

The previous prime is 74083013. The next prime is 74083027. The reversal of 74083021 is 12038047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50608996 + 23474025 = 7114^2 + 4845^2 .

It is a cyclic number.

It is not a de Polignac number, because 74083021 - 23 = 74083013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74083027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37041510 + 37041511.

It is an arithmetic number, because the mean of its divisors is an integer number (37041511).

Almost surely, 274083021 is an apocalyptic number.

It is an amenable number.

74083021 is a deficient number, since it is larger than the sum of its proper divisors (1).

74083021 is an equidigital number, since it uses as much as digits as its factorization.

74083021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 74083021 is about 8607.1494119714. The cubic root of 74083021 is about 419.9905912480.

The spelling of 74083021 in words is "seventy-four million, eighty-three thousand, twenty-one".