54698689 has 2 divisors, whose sum is σ = 54698690. Its totient is φ = 54698688.

The previous prime is 54698653. The next prime is 54698717. The reversal of 54698689 is 98689645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41796225 + 12902464 = 6465^2 + 3592^2 .

It is a cyclic number.

It is not a de Polignac number, because 54698689 - 2⁷ = 54698561 is a prime.

It is not a weakly prime, because it can be changed into another prime (54698989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27349344 + 27349345.

It is an arithmetic number, because the mean of its divisors is an integer number (27349345).

Almost surely, 2^54698689 is an apocalyptic number.

It is an amenable number.

54698689 is a deficient number, since it is larger than the sum of its proper divisors (1).

54698689 is an equidigital number, since it uses as much as digits as its factorization.

54698689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 55.

The square root of 54698689 is about 7395.8562046595. The cubic root of 54698689 is about 379.5995064956.

It can be divided in two parts, 546 and 98689, that added together give a triangular number (99235 = T₄₄₅).

The spelling of 54698689 in words is "fifty-four million, six hundred ninety-eight thousand, six hundred eighty-nine".