380687497 has 2 divisors, whose sum is σ = 380687498. Its totient is φ = 380687496.

The previous prime is 380687449. The next prime is 380687543. The reversal of 380687497 is 794786083.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349091856 + 31595641 = 18684^2 + 5621^2 .

It is a cyclic number.

It is not a de Polignac number, because 380687497 - 2⁷ = 380687369 is a prime.

It is not a weakly prime, because it can be changed into another prime (380687407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190343748 + 190343749.

It is an arithmetic number, because the mean of its divisors is an integer number (190343749).

Almost surely, 2^380687497 is an apocalyptic number.

It is an amenable number.

380687497 is a deficient number, since it is larger than the sum of its proper divisors (1).

380687497 is an equidigital number, since it uses as much as digits as its factorization.

380687497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 380687497 is about 19511.2146469665. The cubic root of 380687497 is about 724.7521924386.

The spelling of 380687497 in words is "three hundred eighty million, six hundred eighty-seven thousand, four hundred ninety-seven".