72770162 has 8 divisors (see below), whose sum is σ = 111817692. Its totient is φ = 35497600.

The previous prime is 72770161. The next prime is 72770177. The reversal of 72770162 is 26107727.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70576801 + 2193361 = 8401^2 + 1481^2 .

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 (72770161) 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, 443639 + ... + 443802.

Almost surely, 2^72770162 is an apocalyptic number.

72770162 is a deficient number, since it is larger than the sum of its proper divisors (39047530).

72770162 is a wasteful number, since it uses less digits than its factorization.

72770162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887484.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 72770162 is about 8530.5428901096. The cubic root of 72770162 is about 417.4948416301.

Adding to 72770162 its reverse (26107727), we get a palindrome (98877889).

The spelling of 72770162 in words is "seventy-two million, seven hundred seventy thousand, one hundred sixty-two".