61670403 has 10 divisors (see below), whose sum is σ = 92125044. Its totient is φ = 41113548.

The previous prime is 61670393. The next prime is 61670417. The reversal of 61670403 is 30407616.

61670403 is a `hidden beast` number, since 616 + 7 + 0 + 40 + 3 = 666.

It is not a de Polignac number, because 61670403 - 2⁹ = 61669891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (61670303) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 380601 + ... + 380762.

Almost surely, 2^61670403 is an apocalyptic number.

61670403 is a deficient number, since it is larger than the sum of its proper divisors (30454641).

61670403 is an equidigital number, since it uses as much as digits as its factorization.

61670403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761375 (or 761366 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 61670403 is about 7853.0505537657. The cubic root of 61670403 is about 395.0865654424.

The spelling of 61670403 in words is "sixty-one million, six hundred seventy thousand, four hundred three".