61370906 has 4 divisors (see below), whose sum is σ = 92056362. Its totient is φ = 30685452.

The previous prime is 61370887. The next prime is 61370921. The reversal of 61370906 is 60907316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37761025 + 23609881 = 6145^2 + 4859^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15342725 + ... + 15342728.

Almost surely, 2^61370906 is an apocalyptic number.

61370906 is a deficient number, since it is larger than the sum of its proper divisors (30685456).

61370906 is a wasteful number, since it uses less digits than its factorization.

61370906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30685455.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 61370906 is about 7833.9585140592. The cubic root of 61370906 is about 394.4459593468.

The spelling of 61370906 in words is "sixty-one million, three hundred seventy thousand, nine hundred six".