83437672 has 8 divisors (see below), whose sum is σ = 156445650. Its totient is φ = 41718832.

The previous prime is 83437661. The next prime is 83437681. The reversal of 83437672 is 27673438.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 80389156 + 3048516 = 8966^2 + 1746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5214847 + ... + 5214862.

Almost surely, 2^83437672 is an apocalyptic number.

It is an amenable number.

83437672 is a deficient number, since it is larger than the sum of its proper divisors (73007978).

83437672 is a wasteful number, since it uses less digits than its factorization.

83437672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10429715 (or 10429711 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 83437672 is about 9134.4223681632. The cubic root of 83437672 is about 436.9724527806.

The spelling of 83437672 in words is "eighty-three million, four hundred thirty-seven thousand, six hundred seventy-two".