70409655 has 20 divisors (see below), whose sum is σ = 126216552. Its totient is φ = 37551600.

The previous prime is 70409641. The next prime is 70409657. The reversal of 70409655 is 55690407.

It is not a de Polignac number, because 70409655 - 2¹⁰ = 70408631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70409657) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 86521 + ... + 87330.

Almost surely, 2^70409655 is an apocalyptic number.

70409655 is a deficient number, since it is larger than the sum of its proper divisors (55806897).

70409655 is a wasteful number, since it uses less digits than its factorization.

70409655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173868 (or 173859 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 70409655 is about 8391.0461207170. The cubic root of 70409655 is about 412.9309215782.

The spelling of 70409655 in words is "seventy million, four hundred nine thousand, six hundred fifty-five".