162977434 has 8 divisors (see below), whose sum is σ = 244566900. Its totient is φ = 81455136.

The previous prime is 162977431. The next prime is 162977483. The reversal of 162977434 is 434779261.

It can be written as a sum of positive squares in 2 ways, for example, as 161163025 + 1814409 = 12695^2 + 1347^2 .

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

It is not an unprimeable number, because it can be changed into a prime (162977431) 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, 10209 + ... + 20740.

Almost surely, 2^162977434 is an apocalyptic number.

162977434 is a deficient number, since it is larger than the sum of its proper divisors (81589466).

162977434 is a wasteful number, since it uses less digits than its factorization.

162977434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33584.

The product of its digits is 254016, while the sum is 43.

The square root of 162977434 is about 12766.2615514488. The cubic root of 162977434 is about 546.2303477789.

The spelling of 162977434 in words is "one hundred sixty-two million, nine hundred seventy-seven thousand, four hundred thirty-four".