161396827 has 8 divisors (see below), whose sum is σ = 171011952. Its totient is φ = 151795200.

The previous prime is 161396821. The next prime is 161396831. The reversal of 161396827 is 728693161.

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 161396827 - 2⁷ = 161396699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161396821) 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, 31827 + ... + 36547.

It is an arithmetic number, because the mean of its divisors is an integer number (21376494).

Almost surely, 2^161396827 is an apocalyptic number.

161396827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

161396827 is a deficient number, since it is larger than the sum of its proper divisors (9615125).

161396827 is a wasteful number, since it uses less digits than its factorization.

161396827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749.

The product of its digits is 108864, while the sum is 43.

The square root of 161396827 is about 12704.2050912287. The cubic root of 161396827 is about 544.4587697081.

The spelling of 161396827 in words is "one hundred sixty-one million, three hundred ninety-six thousand, eight hundred twenty-seven".