977229 has 12 divisors (see below), whose sum is σ = 1540032. Its totient is φ = 592200.

The previous prime is 977209. The next prime is 977233. The reversal of 977229 is 922779.

It is not a de Polignac number, because 977229 - 2¹¹ = 975181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 977193 and 977202.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 977229.

It is not an unprimeable number, because it can be changed into a prime (977209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4837 + ... + 5034.

It is an arithmetic number, because the mean of its divisors is an integer number (128336).

2⁹⁷⁷²²⁹ is an apocalyptic number.

977229 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

977229 is a deficient number, since it is larger than the sum of its proper divisors (562803).

977229 is a wasteful number, since it uses less digits than its factorization.

977229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9888 (or 9885 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 977229 is about 988.5489365732. The cubic root of 977229 is about 99.2351313416.

It can be divided in two parts, 9772 and 29, that added together give a square (9801 = 99²).

The spelling of 977229 in words is "nine hundred seventy-seven thousand, two hundred twenty-nine".