61464589 has 2 divisors, whose sum is σ = 61464590. Its totient is φ = 61464588.

The previous prime is 61464583. The next prime is 61464631. The reversal of 61464589 is 98546416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57229225 + 4235364 = 7565^2 + 2058^2 .

It is a cyclic number.

It is not a de Polignac number, because 61464589 - 2⁷ = 61464461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61464583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30732294 + 30732295.

It is an arithmetic number, because the mean of its divisors is an integer number (30732295).

Almost surely, 2^61464589 is an apocalyptic number.

It is an amenable number.

61464589 is a deficient number, since it is larger than the sum of its proper divisors (1).

61464589 is an equidigital number, since it uses as much as digits as its factorization.

61464589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 61464589 is about 7839.9355226940. The cubic root of 61464589 is about 394.6465652268.

The spelling of 61464589 in words is "sixty-one million, four hundred sixty-four thousand, five hundred eighty-nine".