647654162 has 4 divisors (see below), whose sum is σ = 971481246. Its totient is φ = 323827080.

The previous prime is 647654101. The next prime is 647654167. The reversal of 647654162 is 261456746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 261456746 = 2 ⋅130728373.

It can be written as a sum of positive squares in only one way, i.e., 326850241 + 320803921 = 18079^2 + 17911^2 .

It is not an unprimeable number, because it can be changed into a prime (647654167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161913539 + ... + 161913542.

Almost surely, 2^647654162 is an apocalyptic number.

647654162 is a deficient number, since it is larger than the sum of its proper divisors (323827084).

647654162 is a wasteful number, since it uses less digits than its factorization.

647654162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323827083.

The product of its digits is 241920, while the sum is 41.

The square root of 647654162 is about 25449.0503162692. The cubic root of 647654162 is about 865.1957688921.

The spelling of 647654162 in words is "six hundred forty-seven million, six hundred fifty-four thousand, one hundred sixty-two".