1653547879 has 2 divisors, whose sum is σ = 1653547880. Its totient is φ = 1653547878.

The previous prime is 1653547867. The next prime is 1653547919. The reversal of 1653547879 is 9787453561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1653547879 - 2¹⁵ = 1653515111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1653542879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826773939 + 826773940.

It is an arithmetic number, because the mean of its divisors is an integer number (826773940).

Almost surely, 2^1653547879 is an apocalyptic number.

1653547879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653547879 is an equidigital number, since it uses as much as digits as its factorization.

1653547879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 55.

The square root of 1653547879 is about 40663.8399441076. The cubic root of 1653547879 is about 1182.5120950748.

The spelling of 1653547879 in words is "one billion, six hundred fifty-three million, five hundred forty-seven thousand, eight hundred seventy-nine".