61370587 has 2 divisors, whose sum is σ = 61370588. Its totient is φ = 61370586.

The previous prime is 61370537. The next prime is 61370609. The reversal of 61370587 is 78507316.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61370587 is a prime.

It is not a weakly prime, because it can be changed into another prime (61370537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30685293 + 30685294.

It is an arithmetic number, because the mean of its divisors is an integer number (30685294).

Almost surely, 2^61370587 is an apocalyptic number.

61370587 is a deficient number, since it is larger than the sum of its proper divisors (1).

61370587 is an equidigital number, since it uses as much as digits as its factorization.

61370587 is an evil number, because the sum of its binary digits is even.

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

The square root of 61370587 is about 7833.9381539555. The cubic root of 61370587 is about 394.4452759150.

The spelling of 61370587 in words is "sixty-one million, three hundred seventy thousand, five hundred eighty-seven".