77648153 has 16 divisors (see below), whose sum is σ = 87284736. Its totient is φ = 68465040.

The previous prime is 77648119. The next prime is 77648159. The reversal of 77648153 is 35184677.

It is a cyclic number.

It is not a de Polignac number, because 77648153 - 2⁸ = 77647897 is a prime.

It is a super-2 number, since 2×77648153² = 12058471328622818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77648153.

It is not an unprimeable number, because it can be changed into a prime (77648159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78500 + ... + 79482.

It is an arithmetic number, because the mean of its divisors is an integer number (5455296).

Almost surely, 2^77648153 is an apocalyptic number.

It is an amenable number.

77648153 is a deficient number, since it is larger than the sum of its proper divisors (9636583).

77648153 is a wasteful number, since it uses less digits than its factorization.

77648153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204.

The product of its digits is 141120, while the sum is 41.

The square root of 77648153 is about 8811.8189382216. The cubic root of 77648153 is about 426.6224543896.

The spelling of 77648153 in words is "seventy-seven million, six hundred forty-eight thousand, one hundred fifty-three".