977055853 has 4 divisors (see below), whose sum is σ = 977807008. Its totient is φ = 976304700.

The previous prime is 977055851. The next prime is 977055883. The reversal of 977055853 is 358550779.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 358550779 = 757 ⋅473647.

It is a cyclic number.

It is not a de Polignac number, because 977055853 - 2¹ = 977055851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 977055797 and 977055806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977055851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373623 + ... + 376228.

It is an arithmetic number, because the mean of its divisors is an integer number (244451752).

Almost surely, 2^977055853 is an apocalyptic number.

It is an amenable number.

977055853 is a deficient number, since it is larger than the sum of its proper divisors (751155).

977055853 is a wasteful number, since it uses less digits than its factorization.

977055853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751154.

The product of its (nonzero) digits is 1323000, while the sum is 49.

The square root of 977055853 is about 31257.8926512969. The cubic root of 977055853 is about 992.2927011553.

The spelling of 977055853 in words is "nine hundred seventy-seven million, fifty-five thousand, eight hundred fifty-three".