73371890 has 16 divisors (see below), whose sum is σ = 132302808. Its totient is φ = 29296896.

The previous prime is 73371887. The next prime is 73371899. The reversal of 73371890 is 9817337.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62236321 + 11135569 = 7889^2 + 3337^2 .

It is not an unprimeable number, because it can be changed into a prime (73371899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257 + ... + 12116.

Almost surely, 2^73371890 is an apocalyptic number.

73371890 is a deficient number, since it is larger than the sum of its proper divisors (58930918).

73371890 is a wasteful number, since it uses less digits than its factorization.

73371890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12973.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 73371890 is about 8565.7393142682. The cubic root of 73371890 is about 418.6424230973.

The spelling of 73371890 in words is "seventy-three million, three hundred seventy-one thousand, eight hundred ninety".