3961402 has 4 divisors (see below), whose sum is σ = 5942106. Its totient is φ = 1980700.

The previous prime is 3961393. The next prime is 3961411. The reversal of 3961402 is 2041693.

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

It is an interprime number because it is at equal distance from previous prime (3961393) and next prime (3961411).

It can be written as a sum of positive squares in only one way, i.e., 3455881 + 505521 = 1859^2 + 711^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990349 + ... + 990352.

Almost surely, 2^3961402 is an apocalyptic number.

3961402 is a deficient number, since it is larger than the sum of its proper divisors (1980704).

3961402 is a wasteful number, since it uses less digits than its factorization.

3961402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980703.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 3961402 is about 1990.3271087939. The cubic root of 3961402 is about 158.2278664824.

The spelling of 3961402 in words is "three million, nine hundred sixty-one thousand, four hundred two".