78266037 has 8 divisors (see below), whose sum is σ = 106123680. Its totient is φ = 51292880.

The previous prime is 78266021. The next prime is 78266039. The reversal of 78266037 is 73066287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78266037 - 2⁴ = 78266021 is a prime.

It is a super-2 number, since 2×78266037² = 12251145095370738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78265986 and 78266004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78266039) 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, 220914 + ... + 221267.

It is an arithmetic number, because the mean of its divisors is an integer number (13265460).

Almost surely, 2^78266037 is an apocalyptic number.

It is an amenable number.

78266037 is a deficient number, since it is larger than the sum of its proper divisors (27857643).

78266037 is a wasteful number, since it uses less digits than its factorization.

78266037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442243.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 78266037 is about 8846.8094248718. The cubic root of 78266037 is about 427.7510798927.

The spelling of 78266037 in words is "seventy-eight million, two hundred sixty-six thousand, thirty-seven".