It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79896673 = 109 ⋅732997.
It is a cyclic number.
It is a Duffinian number.
Almost surely, 237669897 is an apocalyptic number.
It is an amenable number.
37669897 is an equidigital number, since it uses as much as digits as its factorization.
37669897 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12278.
The square root of 37669897 is about 6137.5807123002. The cubic root of 37669897 is about 335.2212009050.
The spelling of 37669897 in words is "thirty-seven million, six hundred sixty-nine thousand, eight hundred ninety-seven".