1187274673 has 8 divisors (see below), whose sum is σ = 1319849216. Its totient is φ = 1060592400.

The previous prime is 1187274667. The next prime is 1187274689. The reversal of 1187274673 is 3764727811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1187274673 - 2¹³ = 1187266481 is a prime.

It is a super-2 number, since 2×1187274673² = 2819242298294513858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1187274623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472643 + ... + 1473448.

It is an arithmetic number, because the mean of its divisors is an integer number (164981152).

Almost surely, 2^1187274673 is an apocalyptic number.

1187274673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1187274673 is a deficient number, since it is larger than the sum of its proper divisors (132574543).

1187274673 is a wasteful number, since it uses less digits than its factorization.

1187274673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946135.

The product of its digits is 395136, while the sum is 46.

The square root of 1187274673 is about 34456.8523373799. The cubic root of 1187274673 is about 1058.8889132009. Note that the first 3 decimals are identical.

The spelling of 1187274673 in words is "one billion, one hundred eighty-seven million, two hundred seventy-four thousand, six hundred seventy-three".