1226017977 has 32 divisors (see below), whose sum is σ = 1740533760. Its totient is φ = 766272960.

The previous prime is 1226017973. The next prime is 1226017979. The reversal of 1226017977 is 7797106221.

It is not a de Polignac number, because 1226017977 - 2² = 1226017973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226017973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 973174 + ... + 974432.

It is an arithmetic number, because the mean of its divisors is an integer number (54391680).

Almost surely, 2^1226017977 is an apocalyptic number.

It is an amenable number.

1226017977 is a deficient number, since it is larger than the sum of its proper divisors (514515783).

1226017977 is a wasteful number, since it uses less digits than its factorization.

1226017977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 1226017977 is about 35014.5395086098. The cubic root of 1226017977 is about 1070.2837856180.

The spelling of 1226017977 in words is "one billion, two hundred twenty-six million, seventeen thousand, nine hundred seventy-seven".