74490751 has 2 divisors, whose sum is σ = 74490752. Its totient is φ = 74490750.

The previous prime is 74490743. The next prime is 74490769. The reversal of 74490751 is 15709447.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74490751 - 2³ = 74490743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74490751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74490701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37245375 + 37245376.

It is an arithmetic number, because the mean of its divisors is an integer number (37245376).

Almost surely, 2^74490751 is an apocalyptic number.

74490751 is a deficient number, since it is larger than the sum of its proper divisors (1).

74490751 is an equidigital number, since it uses as much as digits as its factorization.

74490751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 74490751 is about 8630.8024540016. The cubic root of 74490751 is about 420.7596813976.

The spelling of 74490751 in words is "seventy-four million, four hundred ninety thousand, seven hundred fifty-one".