75001387 has 2 divisors, whose sum is σ = 75001388. Its totient is φ = 75001386.

The previous prime is 75001363. The next prime is 75001397. The reversal of 75001387 is 78310057.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75001387 - 2¹¹ = 74999339 is a prime.

It is not a weakly prime, because it can be changed into another prime (75001357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37500693 + 37500694.

It is an arithmetic number, because the mean of its divisors is an integer number (37500694).

Almost surely, 2^75001387 is an apocalyptic number.

75001387 is a deficient number, since it is larger than the sum of its proper divisors (1).

75001387 is an equidigital number, since it uses as much as digits as its factorization.

75001387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 75001387 is about 8660.3341159565. The cubic root of 75001387 is about 421.7189322818.

The spelling of 75001387 in words is "seventy-five million, one thousand, three hundred eighty-seven".