75382649 has 2 divisors, whose sum is σ = 75382650. Its totient is φ = 75382648.

The previous prime is 75382621. The next prime is 75382667. The reversal of 75382649 is 94628357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70023424 + 5359225 = 8368^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 75382649 - 2⁸ = 75382393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75382609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37691324 + 37691325.

It is an arithmetic number, because the mean of its divisors is an integer number (37691325).

Almost surely, 2^75382649 is an apocalyptic number.

It is an amenable number.

75382649 is a deficient number, since it is larger than the sum of its proper divisors (1).

75382649 is an equidigital number, since it uses as much as digits as its factorization.

75382649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 75382649 is about 8682.3181812233. The cubic root of 75382649 is about 422.4323134219.

The spelling of 75382649 in words is "seventy-five million, three hundred eighty-two thousand, six hundred forty-nine".