83900356 has 6 divisors (see below), whose sum is σ = 146825630. Its totient is φ = 41950176.

The previous prime is 83900347. The next prime is 83900359. The reversal of 83900356 is 65300938.

It can be written as a sum of positive squares in only one way, i.e., 76282756 + 7617600 = 8734^2 + 2760^2 .

It is not an unprimeable number, because it can be changed into a prime (83900359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10487541 + ... + 10487548.

Almost surely, 2^83900356 is an apocalyptic number.

It is an amenable number.

83900356 is a deficient number, since it is larger than the sum of its proper divisors (62925274).

83900356 is a wasteful number, since it uses less digits than its factorization.

83900356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20975093 (or 20975091 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 83900356 is about 9159.7137509859. The cubic root of 83900356 is about 437.7786737212.

The spelling of 83900356 in words is "eighty-three million, nine hundred thousand, three hundred fifty-six".