69990037 has 8 divisors (see below), whose sum is σ = 79807896. Its totient is φ = 60805632.

The previous prime is 69990031. The next prime is 69990049. The reversal of 69990037 is 73009996.

69990037 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 4 ways, for example, as 81 + 69989956 = 9^2 + 8366^2 .

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 69990037 - 2³ = 69990029 is a prime.

It is a super-2 number, since 2×69990037² = 9797210558522738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69989975 and 69990002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69990031) 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, 158128 + ... + 158569.

It is an arithmetic number, because the mean of its divisors is an integer number (9975987).

Almost surely, 2^69990037 is an apocalyptic number.

It is an amenable number.

69990037 is a deficient number, since it is larger than the sum of its proper divisors (9817859).

69990037 is a wasteful number, since it uses less digits than its factorization.

69990037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316727.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 69990037 is about 8366.0048410218. The cubic root of 69990037 is about 412.1089764982.

The spelling of 69990037 in words is "sixty-nine million, nine hundred ninety thousand, thirty-seven".